Measurement of the astrophysical diffuse neutrino flux in a combined fit of IceCube’s high energy neutrino data

The IceCube Collaboration

Measurement of the astrophysical diffuse neutrino flux in a combined fit of IceCube’s high energy neutrino data

The IceCube Collaboration

Chair of Experimental Physics with Cosmic Particles

Loyola University Chicago
Deutsches Elektronen-Synchrotron (DESY)
University of Canterbury
University of Wisconsin-Madison
Institute of Physics Bhubaneswar
Université Libre de Bruxelles
Niels Bohr Institutet
pro3dure medical GmbH
University of Delaware
Marquette University
Friedrich Alexander Universität Erlangen-Nürnberg
Broad Institute of Harvard University
University of Utah
South Dakota School of Mines and Technology
University of California, Irvine
University of California at Berkeley
Ohio State University
Max-Planck-lnstitut für Kohlenforschung
Chalmers University of Technology
Uppsala University
Technical University of Munich
RWTH Aachen University
University of Rochester
University of Maryland
University of Padova
University of Kansas
Humanoid Technologies Lab (H2T)
Johannes Gutenberg University
Georgia Institute of Technology
University of Adelaide
University of Münster
Drexel University
SUNY
Sungkyunkwan University
Massachusetts Institute of Technology
VUB Neurology
The Pennsylvania State University
Eberly College of Science
University of Alabama
Oskar Klein Centre
Centre Hospitalier Universitaire (CHU) Mont-Godinne
Michigan State University
Bergische Universität Wuppertal
Chiba-U
Southern University and A&M College
Academia Sinica Taipei
Humboldt-Universität zu Berlin
Lawrence Berkeley National Laboratory
Queen's University
University of Tokyo
Clark-Atlanta University
University of Texas at Arlington
University of Nevada, Las Vegas
University of Alberta
University of Geneva
Columbia University
Yale University
Mercer University at Macon
Ghent University
University of Alaska Anchorage
University of Oxford
University of Wisconsin-River Falls

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

The IceCube Neutrino Observatory has discovered a diffuse neutrino flux of astrophysical origin and measures its properties in various detection channels. With more than 10 years of data, we use multiple data samples from different detection channels for a combined fit of the diffuse astrophysical neutrino spectrum. This leverages the complementary information of different neutrino event signatures. For the first time, we use a coherent modelling of the signal and background, as well as the detector response and corresponding systematic uncertainties. The detector response is continuously varied during the simulation in order to generate a general purpose Monte Carlo set, which is central to our approach. We present a combined fit yielding a measurement of the diffuse astrophysical neutrino flux properties with unprecedented precision.

Original language	English
Article number	1064
Journal	Proceedings of Science
Volume	444
State	Published - 27 Sep 2024
Event	38th International Cosmic Ray Conference, ICRC 2023 - Nagoya, Japan Duration: 26 Jul 2023 → 3 Aug 2023

Cite this

@article{8b71ef00e49b4116a117c4cbbfafe2fe,

title = "Measurement of the astrophysical diffuse neutrino flux in a combined fit of IceCube{\textquoteright}s high energy neutrino data",

abstract = "The IceCube Neutrino Observatory has discovered a diffuse neutrino flux of astrophysical origin and measures its properties in various detection channels. With more than 10 years of data, we use multiple data samples from different detection channels for a combined fit of the diffuse astrophysical neutrino spectrum. This leverages the complementary information of different neutrino event signatures. For the first time, we use a coherent modelling of the signal and background, as well as the detector response and corresponding systematic uncertainties. The detector response is continuously varied during the simulation in order to generate a general purpose Monte Carlo set, which is central to our approach. We present a combined fit yielding a measurement of the diffuse astrophysical neutrino flux properties with unprecedented precision.",

author = "\{The IceCube Collaboration\} and R. Abbasi and M. Ackermann and J. Adams and Agarwalla, \{S. K.\} and Aguilar, \{J. A.\} and M. Ahlers and Alameddine, \{J. M.\} and Amin, \{N. M.\} and K. Andeen and G. Anton and C. Arg{\"u}elles and Y. Ashida and S. Athanasiadou and Axani, \{S. N.\} and X. Bai and Balagopal, \{A. V.\} and M. Baricevic and Barwick, \{S. W.\} and V. Basu and R. Bay and Beatty, \{J. J.\} and \{Becker Tjus\}, J. and J. Beise and C. Bellenghi and C. Benning and S. BenZvi and D. Berley and E. Bernardini and Besson, \{D. Z.\} and E. Blaufuss and S. Blot and F. Bontempo and Book, \{J. Y.\} and \{Boscolo Meneguolo\}, C. and S. B{\"o}ser and O. Botner and J. B{\"o}ttcher and E. Bourbeau and J. Braun and B. Brinson and J. Brostean-Kaiser and Burley, \{R. T.\} and Busse, \{R. S.\} and D. Butterfield and Campana, \{M. A.\} and K. Carloni and Carnie-Bronca, \{E. G.\} and S. Chattopadhyay and N. Chau and E. Resconi",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons.; 38th International Cosmic Ray Conference, ICRC 2023 ; Conference date: 26-07-2023 Through 03-08-2023",

year = "2024",

month = sep,

day = "27",

language = "English",

volume = "444",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - Measurement of the astrophysical diffuse neutrino flux in a combined fit of IceCube’s high energy neutrino data

AU - The IceCube Collaboration

AU - Abbasi, R.

AU - Ackermann, M.

AU - Adams, J.

AU - Agarwalla, S. K.

AU - Aguilar, J. A.

AU - Ahlers, M.

AU - Alameddine, J. M.

AU - Amin, N. M.

AU - Andeen, K.

AU - Anton, G.

AU - Argüelles, C.

AU - Ashida, Y.

AU - Athanasiadou, S.

AU - Axani, S. N.

AU - Bai, X.

AU - Balagopal, A. V.

AU - Baricevic, M.

AU - Barwick, S. W.

AU - Basu, V.

AU - Bay, R.

AU - Beatty, J. J.

AU - Becker Tjus, J.

AU - Beise, J.

AU - Bellenghi, C.

AU - Benning, C.

AU - BenZvi, S.

AU - Berley, D.

AU - Bernardini, E.

AU - Besson, D. Z.

AU - Blaufuss, E.

AU - Blot, S.

AU - Bontempo, F.

AU - Book, J. Y.

AU - Boscolo Meneguolo, C.

AU - Böser, S.

AU - Botner, O.

AU - Böttcher, J.

AU - Bourbeau, E.

AU - Braun, J.

AU - Brinson, B.

AU - Brostean-Kaiser, J.

AU - Burley, R. T.

AU - Busse, R. S.

AU - Butterfield, D.

AU - Campana, M. A.

AU - Carloni, K.

AU - Carnie-Bronca, E. G.

AU - Chattopadhyay, S.

AU - Chau, N.

AU - Resconi, E.

PY - 2024/9/27

Y1 - 2024/9/27

N2 - The IceCube Neutrino Observatory has discovered a diffuse neutrino flux of astrophysical origin and measures its properties in various detection channels. With more than 10 years of data, we use multiple data samples from different detection channels for a combined fit of the diffuse astrophysical neutrino spectrum. This leverages the complementary information of different neutrino event signatures. For the first time, we use a coherent modelling of the signal and background, as well as the detector response and corresponding systematic uncertainties. The detector response is continuously varied during the simulation in order to generate a general purpose Monte Carlo set, which is central to our approach. We present a combined fit yielding a measurement of the diffuse astrophysical neutrino flux properties with unprecedented precision.

AB - The IceCube Neutrino Observatory has discovered a diffuse neutrino flux of astrophysical origin and measures its properties in various detection channels. With more than 10 years of data, we use multiple data samples from different detection channels for a combined fit of the diffuse astrophysical neutrino spectrum. This leverages the complementary information of different neutrino event signatures. For the first time, we use a coherent modelling of the signal and background, as well as the detector response and corresponding systematic uncertainties. The detector response is continuously varied during the simulation in order to generate a general purpose Monte Carlo set, which is central to our approach. We present a combined fit yielding a measurement of the diffuse astrophysical neutrino flux properties with unprecedented precision.

UR - https://www.scopus.com/pages/publications/85212275226

M3 - Conference article

AN - SCOPUS:85212275226

SN - 1824-8039

VL - 444

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 1064

T2 - 38th International Cosmic Ray Conference, ICRC 2023

Y2 - 26 July 2023 through 3 August 2023

ER -

Measurement of the astrophysical diffuse neutrino flux in a combined fit of IceCube’s high energy neutrino data

Abstract

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