Conference proceeding
Conditional normalizing flows for IceCube event reconstruction
Pos : proceedings of science, v 444, 1003
27 Sep 2024
Abstract
The IceCube Neutrino Observatory is a cubic-kilometer high-energy neutrino detector deployed
in the Antarctic ice. Two major event classes are charged-current electron and muon neutrino
interactions. In this contribution, we discuss the inference of direction and energy for these
classes using conditional normalizing flows. They allow to derive a posterior distribution for each
individual event based on the raw data that can include systematic uncertainties, which makes
them very promising for next-generation reconstructions.
For each normalizing flow we use the differential entropy and the KL-divergence to its maximum
entropy approximation to interpret the results. The normalizing flows correctly incorporate
complex optical properties of the Antarctic ice and their relation to the embedded detector. For
showers, the differential entropy increases in regions of high photon absorption and decreases in
clear ice. For muons, the differential entropy strongly correlates with the contained track length.
Coverage is maintained, even for low photon counts and highly asymmetrical contour shapes. For
high-photon counts, the distributions get narrower and become more symmetrical, as expected
from the asymptotic theorem of Bernstein-von-Mises. For shower directional reconstruction, we
find the region between 1 TeV and 100 TeV to potentially benefit the most from normalizing
flows because of azimuth-zenith asymmetries which have been neglected in previous analyses
by assuming symmetrical contours. Events in this energy range play a vital role in the recent
discovery of the galactic plane diffuse neutrino emission.
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Details
- Title
- Conditional normalizing flows for IceCube event reconstruction
- Creators
- R. Abbasi - Loyola University ChicagoM. Ackermann - Deutsches Elektronen-Synchrotron DESYJ. Adams - University of CanterburyS. K. Agarwalla - Institute of Physics, Sainik School Post, Bhubaneswar, IndiaJ. A. Aguilar - Université Libre de BruxellesM. Ahlers - University of CopenhagenJ. M. Alameddine - TU Dortmund UniversityN. M. Amin - University of DelawareK. Andeen - Marquette UniversityG. Anton - Friedrich-Alexander-Universität Erlangen-NürnbergC. Argüelles - Harvard UniversityY. Ashida - University of UtahS. Athanasiadou - Deutsches Elektronen-Synchrotron DESYS. N. Axani - University of DelawareX. Bai - South Dakota School of Mines and TechnologyA. V. Balagopal - University of Wisconsin–MadisonM. Baricevic - University of Wisconsin–MadisonS. W. Barwick - University of California, IrvineV. Basu - University of Wisconsin–MadisonR. Bay - University of California, BerkeleyJ. J. Beatty - The Ohio State UniversityJ. Becker Tjus - Chalmers University of TechnologyJ. Beise - Uppsala UniversityC. Bellenghi - Technical University of MunichC. Benning - RWTH Aachen UniversityS. BenZvi - University of RochesterD. Berley - University of Maryland, College ParkE. Bernardini - Dipartimento di Fisica e Astronomia Galileo Galilei, Università Degli Studi di Padova, Padova, ItalyD. Z. Besson - University of KansasE. Blaufuss - University of Maryland, College ParkS. Blot - Deutsches Elektronen-Synchrotron DESYF. Bontempo - Karlsruhe Institute of Technology, Institute for Astroparticle Physics, Karlsruhe, GermanyJ. Y. Book - Harvard UniversityC. Boscolo Meneguolo - Dipartimento di Fisica e Astronomia Galileo Galilei, Università Degli Studi di Padova, Padova, ItalyS. Böser - Institute of Physics, University of Mainz, Mainz, GermanyO. Botner - Uppsala UniversityJ. Böttcher - RWTH Aachen UniversityE. Bourbeau - University of CopenhagenJ. Braun - University of Wisconsin–MadisonB. Brinson - Georgia Institute of TechnologyJ. Brostean-Kaiser - Deutsches Elektronen-Synchrotron DESYR. T. Burley - Department of Physics, University of Adelaide, Adelaide, AustraliaR. S. Busse - University of MünsterD. Butterfield - University of Wisconsin–MadisonM. A. Campana - Dept. of Physics, Drexel University, Philadelphia, PA, United StatesK. Carloni - Harvard UniversityE. G. Carnie-Bronca - The University of AdelaideS. Chattopadhyay - Institute of Physics, Sainik School Post, Bhubaneswar, IndiaN. Chau - Université Libre de BruxellesC. Chen - Georgia Institute of TechnologyZ. Chen - Stony Brook UniversityD. Chirkin - University of Wisconsin–MadisonS. Choi - Sungkyunkwan UniversityB. A. Clark - University of Maryland, College ParkL. Classen - University of MünsterA. Coleman - Uppsala UniversityG. H. Collin - Massachusetts Institute of TechnologyA. Connolly - The Ohio State UniversityJ. M. Conrad - Massachusetts Institute of TechnologyP. Coppin - Vrije Universiteit BrusselP. Correa - Vrije Universiteit BrusselD. F. Cowen - Pennsylvania State UniversityP. Dave - Georgia Institute of TechnologyC. De Clercq - Vrije Universiteit BrusselJ. J. DeLaunay - University of AlabamaD. Delgado - Harvard UniversityS. Deng - RWTH Aachen UniversityK. Deoskar - Stockholm UniversityA. Desai - University of Wisconsin–MadisonP. Desiati - University of Wisconsin–MadisonK. D. de Vries - Vrije Universiteit BrusselG. de Wasseige - UCLouvainT. DeYoung - Michigan State UniversityA. Diaz - Massachusetts Institute of TechnologyJ. C. Díaz-Vélez - University of Wisconsin–MadisonM. Dittmer - University of MünsterA. Domi - Friedrich-Alexander-Universität Erlangen-NürnbergH. Dujmovic - University of Wisconsin–MadisonM. A. DuVernois - University of Wisconsin–MadisonT. Ehrhardt - Institute of Physics, University of Mainz, Mainz, GermanyP. Eller - Technical University of MunichE. Ellinger - University of WuppertalS. El Mentawi - RWTH Aachen UniversityD. Elsässer - TU Dortmund UniversityR. Engel - Karlsruhe Institute of Technology, Institute of Experimental Particle Physics, Karlsruhe, GermanyH. Erpenbeck - University of Wisconsin–MadisonJ. Evans - University of Maryland, College ParkP. A. Evenson - University of DelawareK. L. Fan - University of Maryland, College ParkK. Fang - University of Wisconsin–MadisonK. Farrag - Chiba UniversityA. R. Fazely - Dept. of Physics, Southern University, Baton Rouge, LA, United StatesA. Fedynitch - Institute of Physics, Academia SinicaN. Feigl - Humboldt-Universität zu BerlinS. Fiedlschuster - Friedrich-Alexander-Universität Erlangen-NürnbergC. Finley - Stockholm UniversityL. Fischer - Deutsches Elektronen-Synchrotron DESYD. Fox - Pennsylvania State UniversityA. Franckowiak - Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, Bochum, GermanyA. Fritz - Institute of Physics, University of Mainz, Mainz, Germany
- Publication Details
- Pos : proceedings of science, v 444, 1003
- Conference
- 38th International Cosmic Ray Conference (ICRC2023), 38th (Nagoya, Japan, 26 Jul 2023–03 Aug 2023)
- Publisher
- Proceedings of Science
- Grant note
- Michigan State University (http://data.elsevier.com/vocabulary/SciValFunders/100007709) Helmholtz Association (http://data.elsevier.com/vocabulary/SciValFunders/501100009318) Fonds Wetenschappelijk Onderzoek (http://data.elsevier.com/vocabulary/SciValFunders/501100003130) Barcelona Supercomputing Center (501100006433) Wisconsin Alumni Research Foundation (100001395) Marsden Fund (http://data.elsevier.com/vocabulary/SciValFunders/501100009193) 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 Knut och Alice Wallenbergs Stiftelse (http://data.elsevier.com/vocabulary/SciValFunders/501100004063)
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Physics
- Scopus ID
- 2-s2.0-85212256775
- Other Identifier
- 991022202506004721