Conference proceeding
Characterization of the PeV astrophysical neutrino energy spectrum with IceCube using down-going tracks
Pos : proceedings of science, v 395, 1137
18 Mar 2022
Abstract
The IceCube Neutrino Observatory has observed a diffuse flux of astrophysical neutrinos with energies from TeV to a few PeV. Recent IceCube analyses have limited sensitivity to PeV neutrinos because upward-going neutrino fluxes are attenuated by the Earth while the Extremely High Energy (EHE) result targets cosmogenic neutrinos only above 10 PeV. In this work, we present a new event selection that fills the gap between 1 PeV and 10 PeV. This sample is obtained by selecting high-energy down-going through-going tracks from 8 years of data. To reduce the atmospheric muon backgrounds and achieve a high signal-to-background ratio, we combine two techniques. The first technique selects events with high stochasticity because single muons created by neutrinos lose energy more stochastically than atmospheric muon bundles whose energy losses are smoothened due to large muon multiplicities. The second technique uses the IceTop surface array as a veto of atmospheric background events. To characterize the astrophysical neutrino flux and test the existence of a cut-off in the neutrino energy spectrum at a few PeV, a global fit will be performed by combining this sample with results from the 7-year High Energy Starting Events (HESE) analysis.
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- Title
- Characterization of the PeV astrophysical neutrino energy spectrum with IceCube using down-going tracks
- Creators
- R. Abbasi - Loyola University ChicagoM. Ackermann - DESY, Zeuthen, GermanyJ. Adams - University of CanterburyJ. A. Aguilar - Université Libre de BruxellesM. Ahlers - University of CopenhagenM. Ahrens - Stockholm UniversityC. Alispach - Département de Physique NucléaireA. A. Alves - Karlsruhe Institute of Technology, Institute for Astroparticle Physics, Karlsruhe, GermanyN. M. Amin - University of DelawareR. An - Harvard UniversityK. Andeen - Marquette UniversityT. Anderson - Pennsylvania State UniversityG. Anton - Friedrich-Alexander-Universität Erlangen-NürnbergC. Argüelles - Harvard UniversityY. Ashida - Dept. of Physics, Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin–Madison, Madison, WI, United StatesS. Axani - Massachusetts Institute of TechnologyX. Bai - South Dakota School of Mines and TechnologyA. V. Balagopal - Dept. of Physics, Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin–Madison, Madison, WI, United StatesA. Barbano - Département de Physique NucléaireS. W. Barwick - University of California, IrvineB. Bastian - DESY, Zeuthen, GermanyV. Basu - Dept. of Physics, Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin–Madison, Madison, WI, United StatesS. Baur - Université Libre de BruxellesR. Bay - University of California, BerkeleyJ. J. Beatty - The Ohio State UniversityK. H. Becker - University of WuppertalJ. Becker Tjus - Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, Bochum, GermanyC. Bellenghi - Ludwig-Maximilians-Universität MünchenS. BenZvi - University of RochesterD. Berley - University of Maryland, College ParkE. Bernardini - Università di Padova, Padova, ItalyD. Z. Besson - National Research Nuclear University, Moscow Engineering Physics Institute (MEPhI), Moscow, Russian FederationG. Binder - Lawrence Berkeley National LaboratoryD. Bindig - University of WuppertalE. Blaufuss - University of Maryland, College ParkS. Blot - DESY, Zeuthen, GermanyM. Boddenberg - RWTH Aachen UniversityF. Bontempo - Karlsruhe Institute of Technology, Institute for Astroparticle Physics, Karlsruhe, GermanyJ. Borowka - RWTH Aachen UniversityS. Böser - Institute of Physics, University of Mainz, Mainz, GermanyO. Botner - Uppsala UniversityJ. Böttcher - RWTH Aachen UniversityE. Bourbeau - University of CopenhagenF. Bradascio - DESY, Zeuthen, GermanyJ. Braun - Dept. of Physics, Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin–Madison, Madison, WI, United StatesS. Bron - Département de Physique NucléaireJ. Brostean-Kaiser - DESY, Zeuthen, GermanyS. Browne - Karlsruhe Institute of Technology, Institute of Experimental Particle Physics, Karlsruhe, GermanyA. Burgman - Uppsala UniversityR. T. Burley - Department of Physics, University of Adelaide, Adelaide, AustraliaR. S. Busse - University of MünsterM. A. Campana - Dept. of Physics, Drexel University, Philadelphia, PA, United StatesE. G. Carnie-Bronca - The University of AdelaideC. Chen - Georgia Institute of TechnologyD. Chirkin - Dept. of Physics, Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin–Madison, Madison, WI, United StatesK. Choi - Sungkyunkwan UniversityB. A. Clark - Michigan State UniversityK. Clark - Queen's UniversityL. Classen - University of MünsterA. Coleman - University of DelawareG. H. Collin - Massachusetts Institute of TechnologyJ. M. Conrad - Massachusetts Institute of TechnologyP. Coppin - Vrije Universiteit BrusselP. Correa - Vrije Universiteit BrusselD. F. Cowen - Pennsylvania State UniversityR. Cross - University of RochesterC. Dappen - RWTH Aachen UniversityP. Dave - Georgia Institute of TechnologyC. De Clercq - Vrije Universiteit BrusselJ. J. DeLaunay - Pennsylvania State UniversityH. Dembinski - University of DelawareK. Deoskar - Stockholm UniversityS. De Ridder - Dept. of Physics and Astronomy, University of Gent, Gent, BelgiumA. Desai - Dept. of Physics, Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin–Madison, Madison, WI, United StatesP. Desiati - Dept. of Physics, Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin–Madison, Madison, WI, United StatesK. D. de Vries - Vrije Universiteit BrusselG. de Wasseige - Vrije Universiteit BrusselM. de With - Humboldt-Universität zu BerlinT. DeYoung - Michigan State UniversityS. Dharani - RWTH Aachen UniversityA. Diaz - Massachusetts Institute of TechnologyJ. C. Díaz-Vélez - University of Wisconsin–MadisonM. Dittmer - University of MünsterH. Dujmovic - Karlsruhe Institute of Technology, Institute for Astroparticle Physics, Karlsruhe, GermanyM. Dunkman - Pennsylvania State UniversityM. A. DuVernois - University of Wisconsin–MadisonE. Dvorak - South Dakota School of Mines and TechnologyT. Ehrhardt - Institute of Physics, University of Mainz, Mainz, GermanyP. Eller - Ludwig-Maximilians-Universität MünchenR. Engel - Karlsruhe Institute of Technology, Institute of Experimental Particle Physics, Karlsruhe, GermanyH. Erpenbeck - RWTH Aachen UniversityJ. Evans - University of Maryland, College ParkP. A. Evenson - University of DelawareK. L. Fan - University of Maryland, College ParkA. R. Fazely - Dept. of Physics, Southern University, Baton Rouge, LA, United StatesS. Fiedlschuster - Friedrich-Alexander-Universität Erlangen-NürnbergA. T. Fienberg - Pennsylvania State UniversityK. Filimonov - University of California, BerkeleyC. Finley - Stockholm UniversityL. Fischer - DESY, Zeuthen, Germany
- Publication Details
- Pos : proceedings of science, v 395, 1137
- Publisher
- SISSA Medialab
- Grant note
- Human Anatomy and Physiology Society Michigan State University (http://data.elsevier.com/vocabulary/SciValFunders/100007709) Deutsche Forschungsgemeinschaft Helmholtz Association (http://data.elsevier.com/vocabulary/SciValFunders/501100009318) Fonds Wetenschappelijk Onderzoek (http://data.elsevier.com/vocabulary/SciValFunders/501100003130) Marsden Fund (http://data.elsevier.com/vocabulary/SciValFunders/501100009193) Centre for High Technology, Ministry of Petroleum and Natural Gas Australian Research Council (http://data.elsevier.com/vocabulary/SciValFunders/501100000923) Bundesministerium für Bildung und Forschung (http://data.elsevier.com/vocabulary/SciValFunders/501100002347) U.S. National Science Foundation-Physics Division
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Physics
- Scopus ID
- 2-s2.0-85145019521
- Other Identifier
- 991022237862804721