Skip to main content

Showing 1–50 of 109 results for author: Huelsnitz, W

.
  1. Dark Matter Search in Nucleon, Pion, and Electron Channels from a Proton Beam Dump with MiniBooNE

    Authors: MiniBooNE-DM Collaboration, A. A. Aguilar-Arevalo, M. Backfish, A. Bashyal, B. Batell, B. C. Brown, R. Carr, A. Chatterjee, R. L. Cooper, P. deNiverville, R. Dharmapalan, Z. Djurcic, R. Ford, F. G. Garcia, G. T. Garvey, J. Grange, J. A. Green, E. -C. Huang, W. Huelsnitz, I. L. de Icaza Astiz, G. Karagiorgi, T. Katori, W. Ketchum, T. Kobilarcik, Q. Liu , et al. (20 additional authors not shown)

    Abstract: A search for sub-GeV dark matter produced from collisions of the Fermilab 8 GeV Booster protons with a steel beam dump was performed by the MiniBooNE-DM Collaboration using data from $1.86 \times 10^{20}$ protons on target in a dedicated run. The MiniBooNE detector, consisting of 818 tons of mineral oil and located 490 meters downstream of the beam dump, is sensitive to a variety of dark matter in… ▽ More

    Submitted 29 March, 2019; v1 submitted 16 July, 2018; originally announced July 2018.

    Comments: 19 pages, 25 figures, Data release: http://www-boone.fnal.gov/for_physicists/data_release/dark_matter_prd/ v2 Updated to published version

    Report number: LA-UR-18-26421, FERMILAB-PUB-18-334-ND

    Journal ref: Phys. Rev. D 98, 112004 (2018)

  2. Significant Excess of ElectronLike Events in the MiniBooNE Short-Baseline Neutrino Experiment

    Authors: MiniBooNE Collaboration, A. A. Aguilar-Arevalo, B. C. Brown, L. Bugel, G. Cheng, J. M. Conrad, R. L. Cooper, R. Dharmapalan, A. Diaz, Z. Djurcic, D. A. Finley, R. Ford, F. G. Garcia, G. T. Garvey, J. Grange, E. -C. Huang, W. Huelsnitz, C. Ignarra, R. A. Johnson, G. Karagiorgi, T. Katori, T. Kobilarcik, W. C. Louis, C. Mariani, W. Marsh , et al. (23 additional authors not shown)

    Abstract: The MiniBooNE experiment at Fermilab reports results from an analysis of $ν_e$ appearance data from $12.84 \times 10^{20}$ protons on target in neutrino mode, an increase of approximately a factor of two over previously reported results. A $ν_e$ charged-current quasielastic event excess of $381.2 \pm 85.2$ events ($4.5 σ$) is observed in the energy range $200<E_ν^{QE}<1250$~MeV. Combining these da… ▽ More

    Submitted 26 October, 2018; v1 submitted 30 May, 2018; originally announced May 2018.

    Comments: Improved some of the figures and improved the correlation between neutrino and antineutrino data

    Report number: LA-UR-18-24586

    Journal ref: Phys. Rev. Lett. 121, 221801 (2018)

  3. arXiv:1801.03848  [pdf, other

    hep-ex hep-ph nucl-ex

    First Measurement of Monoenergetic Muon Neutrino Charged Current Interactions

    Authors: A. A. Aguilar-Arevalo, B. C. Brown, L. Bugel, G. Cheng, E. D. Church, J. M. Conrad, R. L. Cooper, R. Dharmapalan, Z. Djurcic, D. A. Finley, R. S. Fitzpatrick, R. Ford, F. G. Garcia, G. T. Garvey, J. Grange, W. Huelsnitz, C. Ignarra, R. Imlay, R. A. Johnson, J. R. Jordan, G. Karagiorgi, T. Katori, T. Kobilarcik, W. C. Louis, K. Mahn , et al. (24 additional authors not shown)

    Abstract: We report the first measurement of monoenergetic muon neutrino charged current interactions. MiniBooNE has isolated 236 MeV muon neutrino events originating from charged kaon decay at rest ($K^+ \rightarrow μ^+ ν_μ$) at the NuMI beamline absorber. These signal $ν_μ$-carbon events are distinguished from primarily pion decay in flight $ν_μ$ and $\overlineν_μ$ backgrounds produced at the target stati… ▽ More

    Submitted 7 May, 2018; v1 submitted 11 January, 2018; originally announced January 2018.

    Comments: 6 pages, 4 figures

    Journal ref: Phys. Rev. Lett. 120, 141802 (2018)

  4. Dark Matter Search in a Proton Beam Dump with MiniBooNE

    Authors: A. A. Aguilar-Arevalo, M. Backfish, A. Bashyal, B. Batell, B. C. Brown, R. Carr, A. Chatterjee, R. L. Cooper, P. deNiverville, R. Dharmapalan, Z. Djurcic, R. Ford, F. G. Garcia, G. T. Garvey, J. Grange, J. A. Green, W. Huelsnitz, I. L. de Icaza Astiz, G. Karagiorgi, T. Katori, W. Ketchum, T. Kobilarcik, Q. Liu, W. C. Louis, W. Marsh , et al. (18 additional authors not shown)

    Abstract: The MiniBooNE-DM collaboration searched for vector-boson mediated production of dark matter using the Fermilab 8 GeV Booster proton beam in a dedicated run with $1.86 \times 10^{20}$ protons delivered to a steel beam dump. The MiniBooNE detector, 490~m downstream, is sensitive to dark matter via elastic scattering with nucleons in the detector mineral oil. Analysis methods developed for previous M… ▽ More

    Submitted 23 August, 2017; v1 submitted 8 February, 2017; originally announced February 2017.

    Comments: 6 pages, 7 figures, Version consistent with final PRL

    Journal ref: Phys. Rev. Lett. 118, 221803 (2017)

  5. arXiv:1611.03874  [pdf, other

    astro-ph.HE hep-ex

    The contribution of Fermi-2LAC blazars to the diffuse TeV-PeV neutrino flux

    Authors: IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, K. Andeen, T. Anderson, I. Ansseau, G. Anton, M. Archinger, C. Arguelles, C. Argüelles, T. C. Arlen, J. Auffenberg, S. Axani, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus , et al. (297 additional authors not shown)

    Abstract: The recent discovery of a diffuse cosmic neutrino flux extending up to PeV energies raises the question of which astrophysical sources generate this signal. One class of extragalactic sources which may produce such high-energy neutrinos are blazars. We present a likelihood analysis searching for cumulative neutrino emission from blazars in the 2nd Fermi-LAT AGN catalogue (2LAC) using an IceCube ne… ▽ More

    Submitted 11 November, 2016; originally announced November 2016.

    Comments: 18 pages, 22 figures

    Journal ref: ApJ vol. 835, no. 1, p. 45 (2017)

  6. All-flavour Search for Neutrinos from Dark Matter Annihilations in the Milky Way with IceCube/DeepCore

    Authors: IceCube collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, K. Andeen, T. Anderson, I. Ansseau, G. Anton, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, S. Axani, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker , et al. (297 additional authors not shown)

    Abstract: We present the first IceCube search for a signal of dark matter annihilations in the Milky Way using all-flavour neutrino-induced particle cascades. The analysis focuses on the DeepCore sub-detector of IceCube, and uses the surrounding IceCube strings as a veto region in order to select starting events in the DeepCore volume. We use 329 live-days of data from IceCube operating in its 86-string con… ▽ More

    Submitted 19 September, 2016; v1 submitted 1 June, 2016; originally announced June 2016.

    Comments: 15 pages, 8 figures. Minor text changes. Matches version accepted by EPJC

    Journal ref: Eur. Phys. J. C 76, 531 (2016)

  7. Lowering IceCube's Energy Threshold for Point Source Searches in the Southern Sky

    Authors: IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, K. Andeen, T. Anderson, I. Ansseau, G. Anton, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, S. Axani, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker , et al. (295 additional authors not shown)

    Abstract: Observation of a point source of astrophysical neutrinos would be a "smoking gun" signature of a cosmic-ray accelerator. While IceCube has recently discovered a diffuse flux of astrophysical neutrinos, no localized point source has been observed. Previous IceCube searches for point sources in the southern sky were restricted by either an energy threshold above a few hundred TeV or poor neutrino an… ▽ More

    Submitted 26 June, 2016; v1 submitted 30 April, 2016; originally announced May 2016.

    Comments: 19 pages, 4 figures

    Journal ref: The Astrophysical Journal Letters, Volume 824, Number 2, L28 (2016)

  8. Anisotropy in Cosmic-Ray Arrival Directions in the Southern Hemisphere with Six Years of Data from the IceCube Detector

    Authors: IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, G. Anton, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi , et al. (292 additional authors not shown)

    Abstract: The IceCube Neutrino Observatory has accumulated a total of 318 billion cosmic-ray induced muon events between May 2009 and May 2015. This data set was used for a detailed analysis of the cosmic-ray arrival direction anisotropy in the TeV to PeV energy range. The observed global anisotropy features large regions of relative excess and deficit, with amplitudes on the order of $10^{-3}$ up to about… ▽ More

    Submitted 2 June, 2016; v1 submitted 3 March, 2016; originally announced March 2016.

    Comments: Accepted by Astrophysical Journal

    Journal ref: Astrophys.J. 826 (2016) no.2, 220

  9. High-energy Neutrino follow-up search of Gravitational Wave Event GW150914 with ANTARES and IceCube

    Authors: S. Adrián-Martínez, A. Albert, M. André, G. Anton, M. Ardid, J. -J. Aubert, T. Avgitas, B. Baret, J. Barrios-Martí, S. Basa, V. Bertin, S. Biagi, R. Bormuth, M. C. Bouwhuis, R. Bruijn, J. Brunner, J. Busto, A. Capone, L. Caramete, J. Carr, S. Celli, T. Chiarusi, M. Circella, A. Coleiro, R. Coniglione , et al. (1369 additional authors not shown)

    Abstract: We present the high-energy-neutrino follow-up observations of the first gravitational wave transient GW150914 observed by the Advanced LIGO detectors on Sept. 14th, 2015. We search for coincident neutrino candidates within the data recorded by the IceCube and ANTARES neutrino detectors. A possible joint detection could be used in targeted electromagnetic follow-up observations, given the significa… ▽ More

    Submitted 22 April, 2016; v1 submitted 17 February, 2016; originally announced February 2016.

    Comments: 16 pages, 2 figures

    Journal ref: Phys. Rev. D 93, 122010 (2016)

  10. An All-Sky Search for Three Flavors of Neutrinos from Gamma-Ray Bursts with the IceCube Neutrino Observatory

    Authors: IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, G. Anton, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi , et al. (292 additional authors not shown)

    Abstract: We present the results and methodology of a search for neutrinos produced in the decay of charged pions created in interactions between protons and gamma-rays during the prompt emission of 807 gamma-ray bursts (GRBs) over the entire sky. This three-year search is the first in IceCube for shower-like Cherenkov light patterns from electron, muon, and tau neutrinos correlated with GRBs. We detect fiv… ▽ More

    Submitted 2 January, 2017; v1 submitted 25 January, 2016; originally announced January 2016.

    Comments: 33 pages, 14 figures; minor changes made to match published version in the Astrophysical Journal, 2016 June 20

    Journal ref: Astrophys.J. 824 (2016) no.2, 115

  11. arXiv:1601.00653  [pdf, other

    hep-ph astro-ph.CO hep-ex

    Improved limits on dark matter annihilation in the Sun with the 79-string IceCube detector and implications for supersymmetry

    Authors: IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, G. Anton, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi , et al. (293 additional authors not shown)

    Abstract: We present an improved event-level likelihood formalism for including neutrino telescope data in global fits to new physics. We derive limits on spin-dependent dark matter-proton scattering by employing the new formalism in a re-analysis of data from the 79-string IceCube search for dark matter annihilation in the Sun, including explicit energy information for each event. The new analysis excludes… ▽ More

    Submitted 23 March, 2016; v1 submitted 4 January, 2016; originally announced January 2016.

    Comments: 24 pages, 8 figs, 1 table. Contact authors: Pat Scott & Matthias Danninger. Likelihood tool available at http://nulike.hepforge.org. v2: small updates to address JCAP referee report

    Journal ref: JCAP 04 (2016) 022

  12. Search for correlations between the arrival directions of IceCube neutrino events and ultrahigh-energy cosmic rays detected by the Pierre Auger Observatory and the Telescope Array

    Authors: The IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, P. Berghaus, D. Berley , et al. (848 additional authors not shown)

    Abstract: This paper presents the results of different searches for correlations between very high-energy neutrino candidates detected by IceCube and the highest-energy cosmic rays measured by the Pierre Auger Observatory and the Telescope Array. We first consider samples of cascade neutrino events and of high-energy neutrino-induced muon tracks, which provided evidence for a neutrino flux of astrophysical… ▽ More

    Submitted 21 January, 2016; v1 submitted 30 November, 2015; originally announced November 2015.

    Comments: Replaced with published version. Added journal reference and DOI

    Report number: FERMILAB-PUB-15-520-AD-AE-CD-TD

    Journal ref: JCAP01(2016)037

  13. arXiv:1511.02149  [pdf, other

    hep-ex astro-ph.HE

    First combined search for neutrino point-sources in the Southern Hemisphere with the ANTARES and IceCube neutrino telescopes

    Authors: ANTARES Collaboration, S. Adrián-Martínez, A. Albert, M. André, G. Anton, M. Ardid, J. -J. Aubert, B. Baret, J. Barrios-Martí, S. Basa, V. Bertin, S. Biagi, R. Bormuth, M. C. Bouwhuis, R. Bruijn, J. Brunner, J. Busto, A. Capone, L. Caramete, J. Carr, T. Chiarusi, M. Circella, R. Coniglione, H. Costantini, P. Coyle , et al. (405 additional authors not shown)

    Abstract: We present the results of searches for point-like sources of neutrinos based on the first combined analysis of data from both the ANTARES and IceCube neutrino telescopes. The combination of both detectors which differ in size and location forms a window in the Southern sky where the sensitivity to point sources improves by up to a factor of two compared to individual analyses. Using data recorded… ▽ More

    Submitted 6 November, 2015; originally announced November 2015.

    Comments: 25 pages, 9 figures. Submitted to ApJ

    Journal ref: Astrophys. J. 823:65,2016

  14. arXiv:1511.02109  [pdf, other

    astro-ph.HE astro-ph.IM hep-ex

    The IceCube Neutrino Observatory, the Pierre Auger Observatory and the Telescope Array: Joint Contribution to the 34th International Cosmic Ray Conference (ICRC 2015)

    Authors: IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus , et al. (869 additional authors not shown)

    Abstract: We have conducted three searches for correlations between ultra-high energy cosmic rays detected by the Telescope Array and the Pierre Auger Observatory, and high-energy neutrino candidate events from IceCube. Two cross-correlation analyses with UHECRs are done: one with 39 cascades from the IceCube `high-energy starting events' sample and the other with 16 high-energy `track events'. The angular… ▽ More

    Submitted 6 November, 2015; originally announced November 2015.

    Comments: one proceeding, the 34th International Cosmic Ray Conference, 30 July - 6 August 2015, The Hague, The Netherlands; will appear in PoS(ICRC2015)

  15. Searches for Relativistic Magnetic Monopoles in IceCube

    Authors: IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, P. Berghaus, D. Berley , et al. (284 additional authors not shown)

    Abstract: Various extensions of the Standard Model motivate the existence of stable magnetic monopoles that could have been created during an early high-energy epoch of the Universe. These primordial magnetic monopoles would be gradually accelerated by cosmic magnetic fields and could reach high velocities that make them visible in Cherenkov detectors such as IceCube. Equivalently to electrically charged… ▽ More

    Submitted 21 December, 2015; v1 submitted 4 November, 2015; originally announced November 2015.

    Comments: Submitted to EPJ-C

    Journal ref: EPJ C76 (2016) 133

  16. arXiv:1510.05228  [pdf, other

    astro-ph.IM astro-ph.HE physics.ins-det

    IceCube-Gen2 - The Next Generation Neutrino Observatory at the South Pole: Contributions to ICRC 2015

    Authors: The IceCube-Gen2 Collaboration, :, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, G. Anton, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, S. Axani, X. Bai, I. Bartos, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus , et al. (316 additional authors not shown)

    Abstract: Papers submitted to the 34th International Cosmic Ray Conference (ICRC 2015, The Hague) by the IceCube-Gen2 Collaboration.

    Submitted 9 November, 2015; v1 submitted 18 October, 2015; originally announced October 2015.

    Comments: 85 pages, 52 figures, Papers submitted to the 34th International Cosmic Ray Conference, The Hague 2015, v2 has a corrected author list

  17. arXiv:1510.05227  [pdf, other

    astro-ph.HE

    The IceCube Neutrino Observatory - Contributions to ICRC 2015 Part V: Neutrino Oscillations and Supernova Searches

    Authors: The IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus , et al. (290 additional authors not shown)

    Abstract: Papers on neutrino oscillations and supernova searches submitted to the 34th International Cosmic Ray Conference (ICRC 2015, The Hague) by the IceCube Collaboration.

    Submitted 9 November, 2015; v1 submitted 18 October, 2015; originally announced October 2015.

    Comments: 20 pages, 13 figures, Papers submitted to the 34th International Cosmic Ray Conference, The Hague 2015, v2 has a corrected author list

  18. arXiv:1510.05226  [pdf, other

    astro-ph.HE

    The IceCube Neutrino Observatory - Contributions to ICRC 2015 Part IV: Searches for Dark Matter and Exotic Particles

    Authors: The IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus , et al. (290 additional authors not shown)

    Abstract: Papers on searches for dark matter and exotic particles submitted to the 34th International Cosmic Ray Conference (ICRC 2015, The Hague) by the IceCube Collaboration.

    Submitted 9 November, 2015; v1 submitted 18 October, 2015; originally announced October 2015.

    Comments: 72 pages, 46 figues, Papers submitted to the 34th International Cosmic Ray Conference, The Hague 2015, v2 has a corrected author list

  19. arXiv:1510.05225  [pdf, other

    astro-ph.HE

    The IceCube Neutrino Observatory - Contributions to ICRC 2015 Part III: Cosmic Rays

    Authors: The IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus , et al. (290 additional authors not shown)

    Abstract: Papers on cosmic rays submitted to the 34th International Cosmic Ray Conference (ICRC 2015, The Hague) by the IceCube Collaboration.

    Submitted 9 November, 2015; v1 submitted 18 October, 2015; originally announced October 2015.

    Comments: 83 pages, 52 figues, Papers submitted to the 34th International Cosmic Ray Conference, The Hague 2015, v2 has a corrected author list

  20. arXiv:1510.05223  [pdf, other

    astro-ph.HE

    The IceCube Neutrino Observatory - Contributions to ICRC 2015 Part II: Atmospheric and Astrophysical Diffuse Neutrino Searches of All Flavors

    Authors: The IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus , et al. (290 additional authors not shown)

    Abstract: Papers on atmospheric and astrophysical diffuse neutrino searches of all flavors submitted to the 34th International Cosmic Ray Conference (ICRC 2015, The Hague) by the IceCube Collaboration.

    Submitted 9 November, 2015; v1 submitted 18 October, 2015; originally announced October 2015.

    Comments: 66 pages, 36 figures, Papers submitted to the 34th International Cosmic Ray Conference, The Hague 2015, v2 has a corrected author list

  21. arXiv:1510.05222  [pdf, other

    astro-ph.HE

    The IceCube Neutrino Observatory - Contributions to ICRC 2015 Part I: Point Source Searches

    Authors: The IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus , et al. (290 additional authors not shown)

    Abstract: Papers on point source searches submitted to the 34th International Cosmic Ray Conference (ICRC 2015, The Hague) by the IceCube Collaboration.

    Submitted 18 November, 2015; v1 submitted 18 October, 2015; originally announced October 2015.

    Comments: 65 pages, 26 figures, Papers submitted to the 34th International Cosmic Ray Conference, The Hague 2015; v2 has a corrected author list, repairs display errors with some of the figures and adds a link to a joined ICRC paper with the Pierre Auger and Telescope Array collaborations in the ToC; v3 incorporates a last missing link to a joined ICRC paper with the ANTARES collaboration

  22. Search for Astrophysical Tau Neutrinos in Three Years of IceCube Data

    Authors: IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus , et al. (288 additional authors not shown)

    Abstract: The IceCube Neutrino Observatory has observed a diffuse flux of TeV-PeV astrophysical neutrinos at 5.7σ significance from an all-flavor search. The direct detection of tau neutrinos in this flux has yet to occur. Tau neutrinos become distinguishable from other flavors in IceCube at energies above a few hundred TeV, when the cascade from the tau neutrino charged current interaction becomes resolvab… ▽ More

    Submitted 17 January, 2016; v1 submitted 21 September, 2015; originally announced September 2015.

    Comments: 11 pages, 10 figures. Accepted by PRD. This replacement changes from the initial submission to include referees' comments. The impact of a softer astrophysical neutrino energy spectrum of E^{-2.5} is added; also addressed is the potential instrumental backgrounds from PMT afterpulses and late pulses. Correspondence should be addressed to D. L. Xu and D. R. Williams

    Journal ref: Phys. Rev. D 93, 022001 (2016)

  23. Search for Transient Astrophysical Neutrino Emission with IceCube-DeepCore

    Authors: M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, I. Ansseau, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus, D. Berley , et al. (287 additional authors not shown)

    Abstract: We present the results of a search for astrophysical sources of brief transient neutrino emission using IceCube and DeepCore data acquired between May 15th 2012 and April 30th 2013. While the search methods employed in this analysis are similar to those used in previous IceCube point source searches, the data set being examined consists of a sample of predominantly sub-TeV muon neu- trinos from th… ▽ More

    Submitted 4 December, 2015; v1 submitted 16 September, 2015; originally announced September 2015.

    Comments: 32 pages, 6 figures; accepted for publication in The Astrophysical Journal; added references; added figure

    Journal ref: Astrophysical Journal (ApJ), 816, 75 (2016)

  24. Evidence for Astrophysical Muon Neutrinos from the Northern Sky with IceCube

    Authors: IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus, D. Berley , et al. (287 additional authors not shown)

    Abstract: Results from the IceCube Neutrino Observatory have recently provided compelling evidence for the existence of a high energy astrophysical neutrino flux utilizing a dominantly Southern Hemisphere dataset consisting primarily of nu_e and nu_tau charged current and neutral current (cascade) neutrino interactions. In the analysis presented here, a data sample of approximately 35,000 muon neutrinos fro… ▽ More

    Submitted 14 July, 2015; originally announced July 2015.

    Comments: 4 figures, 2, tables, includes supplementary material

    Journal ref: Phys. Rev. Lett. 115, 081102 (2015)

  25. A combined maximum-likelihood analysis of the high-energy astrophysical neutrino flux measured with IceCube

    Authors: IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus, D. Berley , et al. (288 additional authors not shown)

    Abstract: Evidence for an extraterrestrial flux of high-energy neutrinos has now been found in multiple searches with the IceCube detector. The first solid evidence was provided by a search for neutrino events with deposited energies $\gtrsim30$ TeV and interaction vertices inside the instrumented volume. Recent analyses suggest that the extraterrestrial flux extends to lower energies and is also visible wi… ▽ More

    Submitted 16 July, 2015; v1 submitted 14 July, 2015; originally announced July 2015.

    Comments: 16 pages, 10 figures; accepted for publication in The Astrophysical Journal; updated one reference

    Journal ref: Astrophysical Journal 809, 98 (2015)

  26. Characterization of the Atmospheric Muon Flux in IceCube

    Authors: IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus, D. Berley , et al. (290 additional authors not shown)

    Abstract: Muons produced in atmospheric cosmic ray showers account for the by far dominant part of the event yield in large-volume underground particle detectors. The IceCube detector, with an instrumented volume of about a cubic kilometer, has the potential to conduct unique investigations on atmospheric muons by exploiting the large collection area and the possibility to track particles over a long distan… ▽ More

    Submitted 16 March, 2016; v1 submitted 26 June, 2015; originally announced June 2015.

    Comments: 36 pages, 39 figures

    Journal ref: Astropart.Phys. 78 (2016) 1-27

  27. Detection of a Type IIn Supernova in Optical Follow-up Observations of IceCube Neutrino Events

    Authors: M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini , et al. (309 additional authors not shown)

    Abstract: The IceCube neutrino observatory pursues a follow-up program selecting interesting neutrino events in real-time and issuing alerts for electromagnetic follow-up observations. In March 2012, the most significant neutrino alert during the first three years of operation was issued by IceCube. In the follow-up observations performed by the Palomar Transient Factory (PTF), a Type IIn supernova (SN) PTF… ▽ More

    Submitted 17 August, 2015; v1 submitted 9 June, 2015; originally announced June 2015.

    Comments: 17 pages, 10 figures

    MSC Class: 85-05

    Journal ref: Astrophysical Journal (ApJ), 811, 52 (2015)

  28. Search for Dark Matter Annihilation in the Galactic Center with IceCube-79

    Authors: IceCube Collaboration, M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus, D. Berley , et al. (288 additional authors not shown)

    Abstract: The Milky Way is expected to be embedded in a halo of dark matter particles, with the highest density in the central region, and decreasing density with the halo-centric radius. Dark matter might be indirectly detectable at Earth through a flux of stable particles generated in dark matter annihilations and peaked in the direction of the Galactic Center. We present a search for an excess flux of mu… ▽ More

    Submitted 8 June, 2015; v1 submitted 27 May, 2015; originally announced May 2015.

    Comments: 14 pages, 9 figures, Submitted to EPJ-C, added references, extended limit overview

    Journal ref: Eur.Phys.J. C75 (2015) 10, 492

  29. Measurement of the Atmospheric $ν_e$ Spectrum with IceCube

    Authors: IceCube Collaboration, M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, M. Archinger, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, E. Beiser, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini , et al. (286 additional authors not shown)

    Abstract: We present a measurement of the atmospheric $ν_e$ spectrum at energies between 0.1 TeV and 100 TeV using data from the first year of the complete IceCube detector. Atmospheric $ν_e$ originate mainly from the decays of kaons produced in cosmic-ray air showers. This analysis selects 1078 fully contained events in 332 days of livetime, then identifies those consistent with particle showers. A likelih… ▽ More

    Submitted 30 June, 2015; v1 submitted 14 April, 2015; originally announced April 2015.

    Comments: PRD accepted version

    Journal ref: Phys.Rev. D91:122004,2015

  30. Searches for Time Dependent Neutrino Sources with IceCube Data from 2008 to 2012

    Authors: M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson , et al. (282 additional authors not shown)

    Abstract: In this paper searches for flaring astrophysical neutrino sources and sources with periodic emission with the IceCube neutrino telescope are presented. In contrast to time integrated searches, where steady emission is assumed, the analyses presented here look for a time dependent signal of neutrinos using the information from the neutrino arrival times to enhance the discovery potential. A search… ▽ More

    Submitted 19 May, 2015; v1 submitted 2 March, 2015; originally announced March 2015.

    Journal ref: ApJ 807 (2015) 46

  31. Flavor Ratio of Astrophysical Neutrinos above 35 TeV in IceCube

    Authors: IceCube Collaboration, M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson , et al. (278 additional authors not shown)

    Abstract: A diffuse flux of astrophysical neutrinos above $100\,\mathrm{TeV}$ has been observed at the IceCube Neutrino Observatory. Here we extend this analysis to probe the astrophysical flux down to $35\,\mathrm{TeV}$ and analyze its flavor composition by classifying events as showers or tracks. Taking advantage of lower atmospheric backgrounds for shower-like events, we obtain a shower-biased sample con… ▽ More

    Submitted 11 February, 2015; originally announced February 2015.

    Comments: 8 pages, 3 figures. Submitted to PRL

    Journal ref: Phys. Rev. Lett. 114, 171102 (2015)

  32. Search for Prompt Neutrino Emission from Gamma-Ray Bursts with IceCube

    Authors: IceCube Collaboration, M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson , et al. (278 additional authors not shown)

    Abstract: We present constraints derived from a search of four years of IceCube data for a prompt neutrino flux from gamma-ray bursts (GRBs). A single low-significance neutrino, compatible with the atmospheric neutrino background, was found in coincidence with one of the 506 observed bursts. Although GRBs have been proposed as candidate sources for ultra-high energy cosmic rays, our limits on the neutrino f… ▽ More

    Submitted 9 July, 2015; v1 submitted 19 December, 2014; originally announced December 2014.

    Comments: 15 pages, 3 figures

    Journal ref: 2015 ApJ 805 L5

  33. arXiv:1412.5106  [pdf, other

    astro-ph.HE astro-ph.IM hep-ex

    IceCube-Gen2: A Vision for the Future of Neutrino Astronomy in Antarctica

    Authors: IceCube-Gen2 Collaboration, :, M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, G. Anton, C. Arguelles, T. C. Arlen, J. Auffenberg, S. Axani, X. Bai, I. Bartos, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus , et al. (304 additional authors not shown)

    Abstract: The recent observation by the IceCube neutrino observatory of an astrophysical flux of neutrinos represents the "first light" in the nascent field of neutrino astronomy. The observed diffuse neutrino flux seems to suggest a much larger level of hadronic activity in the non-thermal universe than previously thought and suggests a rich discovery potential for a larger neutrino observatory. This docum… ▽ More

    Submitted 18 December, 2014; v1 submitted 16 December, 2014; originally announced December 2014.

    Comments: 20 pages, 12 figures. Address correspondence to: E. Blaufuss, F. Halzen, C. Kopper (Changed to add one missing author, no other changes from initial version.)

  34. arXiv:1410.7227  [pdf, other

    hep-ex physics.ins-det

    Determining neutrino oscillation parameters from atmospheric muon neutrino disappearance with three years of IceCube DeepCore data

    Authors: IceCube Collaboration, M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson , et al. (279 additional authors not shown)

    Abstract: We present a measurement of neutrino oscillations via atmospheric muon neutrino disappearance with three years of data of the completed IceCube neutrino detector. DeepCore, a region of denser instrumentation, enables the detection and reconstruction of atmospheric muon neutrinos between 10 GeV and 100 GeV, where a strong disappearance signal is expected. The detector volume surrounding DeepCore is… ▽ More

    Submitted 13 April, 2015; v1 submitted 27 October, 2014; originally announced October 2014.

    Comments: 10 pages, 7 figures

    Journal ref: Phys. Rev. D 91, 072004 (2015)

  35. Atmospheric and Astrophysical Neutrinos above 1 TeV Interacting in IceCube

    Authors: M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson, G. Binder , et al. (279 additional authors not shown)

    Abstract: The IceCube Neutrino Observatory was designed primarily to search for high-energy (TeV--PeV) neutrinos produced in distant astrophysical objects. A search for $\gtrsim 100$~TeV neutrinos interacting inside the instrumented volume has recently provided evidence for an isotropic flux of such neutrinos. At lower energies, IceCube collects large numbers of neutrinos from the weak decays of mesons in c… ▽ More

    Submitted 13 January, 2015; v1 submitted 7 October, 2014; originally announced October 2014.

    Comments: 18 pages, 12 figures

    Journal ref: Phys. Rev. D 91, 022001 (2015)

  36. Development of a General Analysis and Unfolding Scheme and its Application to Measure the Energy Spectrum of Atmospheric Neutrinos with IceCube

    Authors: M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson, G. Binder, D. Bindig , et al. (279 additional authors not shown)

    Abstract: We present the development and application of a generic analysis scheme for the measurement of neutrino spectra with the IceCube detector. This scheme is based on regularized unfolding, preceded by an event selection which uses a Minimum Redundancy Maximum Relevance algorithm to select the relevant variables and a Random Forest for the classification of events. The analysis has been developed usin… ▽ More

    Submitted 16 February, 2015; v1 submitted 16 September, 2014; originally announced September 2014.

    Comments: Version 3: includes referee comments from EPJC

    Journal ref: Eur.Phys.J. C75 (2015) 3, 116

  37. Searches for small-scale anisotropies from neutrino point sources with three years of IceCube data

    Authors: IceCube Collaboration, M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson, G. Binder , et al. (278 additional authors not shown)

    Abstract: Recently, IceCube found evidence for a diffuse signal of astrophysical neutrinos in an energy range of $60\,\mathrm{TeV}$ to the $\mathrm{PeV}$-scale. The origin of those events, being a key to understanding the origin of cosmic rays, is still an unsolved question. So far, analyses have not succeeded to resolve the diffuse signal into point-like sources. Searches including a maximum-likelihood-rat… ▽ More

    Submitted 14 January, 2015; v1 submitted 4 August, 2014; originally announced August 2014.

    Comments: 35 pages, 16 figures, 1 table

    MSC Class: 85-05 ACM Class: J.2

    Journal ref: Astroparticle Physics 66 (2015) 39-52

  38. arXiv:1407.3304  [pdf, other

    hep-ex hep-ph nucl-ex

    Using L/E Oscillation Probability Distributions

    Authors: A. A. Aguilar-Arevalo, B. C. Brown, L. Bugel, G. Cheng, E. D. Church, J. M. Conrad, R. Dharmapalan, Z. Djurcic, D. A. Finley, R. Ford, F. G. Garcia, G. T. Garvey, J. Grange, W. Huelsnitz, C. Ignarra, R. Imlay, R. A. Johnson, G. Karagiorgi, T. Katori, T. Kobilarcik, W. C. Louis, C. Mariani, W. Marsh, G. B. Mills, J. Mirabal , et al. (19 additional authors not shown)

    Abstract: This paper explores the use of $L/E$ oscillation probability distributions to compare experimental measurements and to evaluate oscillation models. In this case, $L$ is the distance of neutrino travel and $E$ is a measure of the interacting neutrino's energy. While comparisons using allowed and excluded regions for oscillation model parameters are likely the only rigorous method for these comparis… ▽ More

    Submitted 11 July, 2014; originally announced July 2014.

  39. Multimessenger Search for Sources of Gravitational Waves and High-Energy Neutrinos: Results for Initial LIGO-Virgo and IceCube

    Authors: The IceCube Collaboration, The LIGO Scientific Collaboration, The Virgo Collaboration, M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard , et al. (1166 additional authors not shown)

    Abstract: We report the results of a multimessenger search for coincident signals from the LIGO and Virgo gravitational-wave observatories and the partially completed IceCube high-energy neutrino detector, including periods of joint operation between 2007-2010. These include parts of the 2005-2007 run and the 2009-2010 run for LIGO-Virgo, and IceCube's observation periods with 22, 59 and 79 strings. We find… ▽ More

    Submitted 9 October, 2014; v1 submitted 3 July, 2014; originally announced July 2014.

    Journal ref: Phys. Rev. D 90, 102002 (2014)

  40. arXiv:1406.6868  [pdf, other

    astro-ph.HE astro-ph.GA

    Multipole analysis of IceCube data to search for dark matter accumulated in the Galactic halo

    Authors: IceCube Collaboration, M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson, G. Binder , et al. (277 additional authors not shown)

    Abstract: Dark matter which is bound in the Galactic halo might self-annihilate and produce a flux of stable final state particles, e.g. high energy neutrinos. These neutrinos can be detected with IceCube, a cubic-kilometer sized Cherenkov detector. Given IceCube's large field of view, a characteristic anisotropy of the additional neutrino flux is expected. In this paper we describe a multipole method to se… ▽ More

    Submitted 22 October, 2014; v1 submitted 26 June, 2014; originally announced June 2014.

    Comments: 17 pages, 18 figures, 5 tables

    Journal ref: European Physical Journal C 01/2015; 75(20)

  41. Searches for Extended and Point-like Neutrino Sources with Four Years of IceCube Data

    Authors: IceCube Collaboration, M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson, G. Binder , et al. (279 additional authors not shown)

    Abstract: We present results on searches for point-like sources of neutrinos using four years of IceCube data, including the first year of data from the completed 86-string detector. The total livetime of the combined dataset is 1,373 days. For an E$^{-2}$ spectrum the median sensitivity at 90\% C.L. is $\sim 10^{-12}$ TeV$^{-1}$cm$^{-2}$s$^{-1}$ for energies between 1 TeV$-$1 PeV in the northern sky and… ▽ More

    Submitted 25 June, 2014; originally announced June 2014.

    Comments: 36 pages, 15 figures. Submitted to the Astrophysical Journal

    Journal ref: Astrophys.J. 796:109,2014

  42. arXiv:1405.5303  [pdf, other

    astro-ph.HE astro-ph.CO hep-ex

    Observation of High-Energy Astrophysical Neutrinos in Three Years of IceCube Data

    Authors: M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, D. Altmann, T. Anderson, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, S. W. Barwick, V. Baum, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson, G. Binder, D. Bindig , et al. (272 additional authors not shown)

    Abstract: A search for high-energy neutrinos interacting within the IceCube detector between 2010 and 2012 provided the first evidence for a high-energy neutrino flux of extraterrestrial origin. Results from an analysis using the same methods with a third year (2012-2013) of data from the complete IceCube detector are consistent with the previously reported astrophysical flux in the 100 TeV - PeV range at t… ▽ More

    Submitted 2 July, 2014; v1 submitted 21 May, 2014; originally announced May 2014.

    Comments: 8 pages, 5 figures. Accepted by PRL. The event catalog, event displays, and other data tables are included after the final page of the article. Changed from the initial submission to reflect referee comments, expanding the section on atmospheric backgrounds, and fixes offsets of up to 0.9 seconds in reported event times. Address correspondence to: J. Feintzeig, C. Kopper, N. Whitehorn

    Journal ref: Phys. Rev. Lett. 113, 101101 (2014)

  43. arXiv:1402.3460  [pdf, other

    astro-ph.CO astro-ph.HE

    Search for non-relativistic Magnetic Monopoles with IceCube

    Authors: IceCube Collaboration, M. G. Aartsen, R. Abbasi, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, D. Altmann, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, M. L. Benabderrahmane, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard , et al. (266 additional authors not shown)

    Abstract: The IceCube Neutrino Observatory is a large Cherenkov detector instrumenting $1\,\mathrm{km}^3$ of Antarctic ice. The detector can be used to search for signatures of particle physics beyond the Standard Model. Here, we describe the search for non-relativistic, magnetic monopoles as remnants of the GUT (Grand Unified Theory) era shortly after the Big Bang. These monopoles may catalyze the decay of… ▽ More

    Submitted 11 June, 2014; v1 submitted 14 February, 2014; originally announced February 2014.

    Comments: 20 pages, 20 figures

    Journal ref: Eur.Phys.J. C74:2938,2014

  44. Search for neutrino-induced particle showers with IceCube-40

    Authors: IceCube Collaboration, M. G. Aartsen, R. Abbasi, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, D. Altmann, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson , et al. (265 additional authors not shown)

    Abstract: We report on the search for neutrino-induced particle-showers, so-called cascades, in the IceCube-40 detector. The data for this search was collected between April 2008 and May 2009 when the first 40 IceCube strings were deployed and operational. Three complementary searches were performed, each optimized for different energy regimes. The analysis with the lowest energy threshold (2 TeV) targeted… ▽ More

    Submitted 30 November, 2013; originally announced December 2013.

    Comments: 19 pages, 13 figures, submitted to Phys. Rev. D

    Journal ref: Phys.Rev. D89:102001,2014

  45. Search for a diffuse flux of astrophysical muon neutrinos with the IceCube 59-string configuration

    Authors: The IceCube Collaboration, M. G. Aartsen, R. Abbasi, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, D. Altmann, C. Arguelles, T. C. Arlen, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson , et al. (265 additional authors not shown)

    Abstract: A search for high-energy neutrinos was performed using data collected by the IceCube Neutrino Observatory from May 2009 to May 2010, when the array was running in its 59-string configuration. The data sample was optimized to contain muon neutrino induced events with a background contamination of atmospheric muons of less than 1%. These data, which are dominated by atmospheric neutrinos, are analyz… ▽ More

    Submitted 27 November, 2013; originally announced November 2013.

    Comments: 18 pages, 13 figures. Submitted to Phys. Rev. D

    Journal ref: Phys. Rev. D 89, 062007 (2014)

  46. The IceProd Framework: Distributed Data Processing for the IceCube Neutrino Observatory

    Authors: M. G. Aartsen, R. Abbasi, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, D. Altmann, C. Arguelles, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson, G. Binder, D. Bindig , et al. (262 additional authors not shown)

    Abstract: IceCube is a one-gigaton instrument located at the geographic South Pole, designed to detect cosmic neutrinos, iden- tify the particle nature of dark matter, and study high-energy neutrinos themselves. Simulation of the IceCube detector and processing of data require a significant amount of computational resources. IceProd is a distributed management system based on Python, XML-RPC and GridFTP. It… ▽ More

    Submitted 22 August, 2014; v1 submitted 22 November, 2013; originally announced November 2013.

    Journal ref: Journal of Parallel & Distributed Computing 75:198,2015

  47. arXiv:1311.5238  [pdf, other

    astro-ph.HE astro-ph.CO hep-ex

    Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector

    Authors: IceCube Collaboration, M. G. Aartsen, R. Abbasi, Y. Abdou, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, D. Altmann, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, S. Bechet, J. Becker Tjus, K. -H. Becker, M. L. Benabderrahmane, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard , et al. (253 additional authors not shown)

    Abstract: We report on results of an all-sky search for high-energy neutrino events interacting within the IceCube neutrino detector conducted between May 2010 and May 2012. The search follows up on the previous detection of two PeV neutrino events, with improved sensitivity and extended energy coverage down to approximately 30 TeV. Twenty-six additional events were observed, substantially more than expecte… ▽ More

    Submitted 16 December, 2013; v1 submitted 20 November, 2013; originally announced November 2013.

    Comments: Revised version corrects the energy threshold for figure 7 (bottom) and one affiliation in the author list. The effective area (figure 7, top) is not affected and remains unchanged. The correction does not influence any of the results presented in the paper, and the text remains unchanged. Address correspondence to: Claudio Kopper, Naoko Kurahashi, Nathan Whitehorn

    Journal ref: Science 342, 1242856 (2013)

  48. arXiv:1311.4767  [pdf, other

    physics.ins-det astro-ph.IM

    Energy Reconstruction Methods in the IceCube Neutrino Telescope

    Authors: IceCube Collaboration, M. G. Aartsen, R. Abbasi, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, D. Altmann, C. Arguelles, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson, G. Binder , et al. (263 additional authors not shown)

    Abstract: Accurate measurement of neutrino energies is essential to many of the scientific goals of large-volume neutrino telescopes. The fundamental observable in such detectors is the Cherenkov light produced by the transit through a medium of charged particles created in neutrino interactions. The amount of light emitted is proportional to the deposited energy, which is approximately equal to the neutrin… ▽ More

    Submitted 10 February, 2014; v1 submitted 19 November, 2013; originally announced November 2013.

    Comments: 21 pages, 23 figures. New version reflects referee comments. Accepted by J. Instrumentation

    Journal ref: JINST 9 (2014), P03009

  49. arXiv:1310.5477  [pdf, ps, other

    astro-ph.HE astro-ph.CO hep-ex

    Probing the origin of cosmic-rays with extremely high energy neutrinos using the IceCube Observatory

    Authors: IceCube Collaboration, M. G. Aartsen, R. Abbasi, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, D. Altmann, C. Arguelles, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, P. Berghaus, D. Berley, E. Bernardini, A. Bernhard, D. Z. Besson, G. Binder , et al. (254 additional authors not shown)

    Abstract: We have searched for extremely high energy neutrinos using data taken with the IceCube detector between May 2010 and May 2012. Two neutrino induced particle shower events with energies around 1 PeV were observed, as reported previously. In this work, we investigate whether these events could originate from cosmogenic neutrinos produced in the interactions of ultra-high energy cosmic-rays with ambi… ▽ More

    Submitted 28 November, 2013; v1 submitted 21 October, 2013; originally announced October 2013.

    Comments: A follow-up analysis to the report published in PRL 111 (2013) 021103. 15 pages, 9 figures, 5 tables, the version accepted for publication in Physical Review D

    Journal ref: Phys. Rev. D88 (2013) 112008

  50. arXiv:1310.0076  [pdf, other

    hep-ex

    A new investigation of electron neutrino appearance oscillations with improved sensitivity in the MiniBooNE+ experiment

    Authors: R. Dharmapalan, S. Habib, C. Jiang, I. Stancu, Z. Djurcic, R. A. Johnson, A. Wickremasinghe, G. Karagiorgi, M. H. Shaevitz, B. C. Brown, F. G. Garcia, R. Ford, W. Marsh, C. D. Moore, D. Perevalov, C. C. Polly, J. Grange, J. Mousseau, B. Osmanov, H. Ray, R. Cooper, R. Tayloe, R. Thornton, G. T. Garvey, W. Huelsnitz , et al. (12 additional authors not shown)

    Abstract: We propose the addition of scintillator to the existing MiniBooNE detector to allow a test of the neutral-current/charged-current (NC/CC) nature of the MiniBooNE low-energy excess. Scintillator will enable the reconstruction of 2.2 MeV $γ$s from neutron-capture on protons following neutrino interactions. Low-energy CC interactions where the oscillation excess is observed should have associated neu… ▽ More

    Submitted 2 October, 2013; v1 submitted 30 September, 2013; originally announced October 2013.

    Comments: Submitted as whitepaper for Snowmass'13 proceedings - 8 pages, 3 figures; version 2: Minor change to title and author list