Accès ouvert déclaré
2025
conference-paper
Characterizing the Astrophysical Neutrino Flux Using Contained and Uncontained Cascade Events in IceCube
IceCube Collaboration, Zoë Rechav, Emre Burak Yildizci, Lu Lu, Jennifer A. Adams, Sanjib Kumar Agarwalla, J. A. Aguilar, Markus Ahlers, Jean Marco Alameddine, Suzanne J. M. Ali, Najia Moureen Binte Amin, K. Andeen, Carlos A. Argüelles Delgado, Y. Ashida, Sofia Athanasiadou, Spencer Axani, Rishi Babu, Xinhua Bai, J. Baines-Holmes, Simeon Bash, Vedant Basu, Ryan Bay, James Beatty, Julia Becker-Tjus, P. Behrens, Jakob Beise, Chiara Bellenghi, B. Benkel, Segev Y. BenZvi, David Berley, Elisa Bernardini, D. Besson, E. Blaufuss, Lucas Bloom, Summer Blot, I. Bodo, J. Y. Book Motzkin, C. Boscolo Meneguolo, Olga Botner, Jakob Bottcher, James Braun, Bennett Brinson, Z. Brisson-Tsavoussis, Ryan T. Burley, D. Butterfield, Michael Campana, Kiara Carloni, Jose Carpio, Subhasis Chattopadhyay, Nhan Thien Chau, Zheyang Chen, Dmitry Chirkin, S. Choi, Brian A. Clark, Alan Coleman, P. Coleman, G. H. Collin, Diego Alberto Coloma Borja, A. Connolly, Janet M. Conrad, R. Corley, D.F. Cowen, Catherine de Clercq, James DeLaunay, Diyaselis Delgado, T. Delmeulle, S. Deng, Paolo Desiati, Krijn D. de Vries, Tyce DeYoung, J. C. Díaz-Vélez, Stephen DiKerby, Markus Dittmer, Alba Domi, Logan Draper, L. Dueser, Daniel Durnford, Kaustav Dutta, Michael A. DuVernois, Thomas Ehrhardt, L. Eidenschink, Anna Eimer, P. Eller, Enrico Ellinger, Dominik Elsässer, Ralph Engel, Hannah Erpenbeck, Waleed Esmail, Steven Young Eulig, Justin J. Evans, Paul Arthur Evenson, K. L. Fan, K. Fang, Kareem Ramadan Farrag, Ali R. Fazely
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Le résumé fourni par la source
Recently, the IceCube Neutrino Observatory has reported a deviation from the single power law in the extragalactic diffuse neutrino flux, primarily driven by the hardening of the low-energy flux below 30 TeV. A neural network-based event selection of contained and uncontained cascade events from IceCube, in which uncontained events have interaction vertices at the edge or outside of the detector instrumentation volume, has a factor ~2-4 gain in effective area over the cascade events used in the novel combined tracks and cascades selection which reported the deviation. Systematic improvements and rigorously updated modeling of the atmospheric neutrino background is incorporated into this high statistics contained and uncontained cascade event selection to clarify features of the astrophysical neutrino spectrum across energies from 1 TeV up to 100 PeV.
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Les sujets associés
Astrophysics and Cosmic PhenomenaNeutrino Physics ResearchRadioactive Decay and Measurement Techniques