Neutrino flavor composition using High Energy Starting Events with IceCube

Astrophysical neutrinos provide crucial insights into their sources and play a key role in multi- messenger astronomy. The neutrino flavor composition at Earth allows us to probe the mechanisms of neutrino production and cosmic ray acceleration, as well as the properties of the environments in which they originate. Understanding the flavor composition also offers a unique opportunity to test new physics in the neutrino sector. The IceCube Neutrino Observatory consists of 1 km$^3$ of ice instrumented with photomultipliers that detect neutrinos through Cherenkov radiation from their interaction products. Different neutrino interactions result in distinct event topologies, such as tracks, cascades, and double cascade events, which allow for the identification of the interacting neutrino type and measurement of the flavor composition of the astrophysical neutrino flux. In this contribution we present the results of the measurement of the flavor ratio of the High-Energy Starting Event Selection based on 12 years of data, a high-purity sample of neutrino interactions that occur inside the detector. In addition, we discuss various methods that could further improve the analysis in the future.

Authors

Publication Details

Published
2025-09-24
DOI
https://doi.org/10.22323/1.501.1198
Primary Topic
Astrophysics and Cosmic Phenomena
Type
article
Field-Weighted Citation Impact
0.00

Funders

Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

Neutrino flavor composition using High Energy Starting Events with IceCube

L. Schumacher, L. Köpke, Sofia Athanasiadou, Kiara Carloni et al.
Astrophysics and Cosmic Phenomena
article

Neutrino flavor composition using High Energy Starting Events with IceCube

L. Schumacher, L. Köpke, Sofia Athanasiadou, Kiara Carloni, Anil Kumar, Rasmus Orsoe, Sarah Mechbal, Rishi Babu, Philip Weigel, Arun Vaidyanathan, Thijs van Eeden, Diego Alberto Coloma Borja, Allan Hallgren, G. M. Spiczak, Christy Love, M. Lamoureux, Thien Nhan Chau, Spencer Griswold, Woosik Kang, I. Taboada, Daniel Salazar-Gallegos, S. R. Klein, Michael Campana, James DeLaunay, Frank Schröder, Jonathan Mauro, Felix Schlüter, Delaney Butterfield, C. H. Wiebusch, P. Desiati, Lukas Hennig, C. De Clercq, K. D. de Vries, Alexander Sandrock, Felix Henningsen, Sebastian Schindler, Yuriy Popovych, Axel Ponten, Claudio Kopper, Hershal Pandya, Ek Narayan Paudel, A. Parenti, G. de Wasseige, Veronika Palušová, A. Haungs, Erik Ganster, Leonora Kardum, Shefali Shefali, Colton Hill, Laurent Arnaud, Frederik Hermann Lauber, J. C. Díaz–Vélez, Julian Saffer, Christoph Raab, J. V. Santen, Félix Carbonell, Matheus Hostert, Miaochen Jin, Karriem Upshaw, Diyaselis Delgado, G. C. Hill, Kendall Mahn, Markus Dittmer, J. M. Conrad, P. Eller, S. Yoshida, Julia Book, Nils Heyer, Joelle Savelberg, A. R. Fazely, Finn Mayhew, Kaustav Dutta, Bennett Brinson, F. Halzen, Martin Wolf, S. Griffin, E. Bernardini, Alicia Mand, Leon Hamacher, Kael Hanson, Oliver Janik, John Rack-Helleis, Thomas Ehrhardt, Agnieszka Leszczyńska, Maximilian Meier, Martina Karl, Christian Spiering, C. Pérez de los Heros, Cristina Lagunas Gualda, Lars Philipp Heuermann, Emma Kun, Sreetama Goswami, Sanjib Kumar Agarwalla, T. Glüsenkamp, Anna Eimer, Matthias Thiesmeyer, Jan Soedingrekso, C. Argüelles, Aishwarya Vijai, Attila Hidvégi, Kathrine Mørch Groth, Christian Spannfellner, Fahim Varsi, A. Connolly, Lucas Bloom, Jan Weldert, Barbara Skrzypek, X. Bai, Gaurav Garg, Yuya Makino, M. Kowalski, E. Blaufuss, Seowon Choi, Shannon Gray, V. A. Parrish, D. Chirkin, D. Besson, Vedant Basu, S. Toscano, Gerhard Krieger, Yarno Merckx, Christian Gläser, Philipp Behrens, Aya Ishihara, Alexander Harnisch, Xianwu Xu, Kirsten Tollefson, Kareem Ramadan Farrag, S. Ter–Antonyan, J. Böttcher, Erin O’Sullivan, Bruno Benkel, S. Sclafani, Maria Liubarska, Ryan T. Burley, Nora Valtonen-Mattila, Thomas Stuttard, Hannah Erpenbeck, Will Thompson, Sarah Mancina, Lukas Merten, T. Stezelberger, G. W. Sullivan, T. Karg, R. W. Moore, Jakob Beise, Christian Haack, Akanksha Katil, Lilly Pyras, Sharmistha Chattopadhyay, R. Hewett, Simeon Bash, Alex Wen, L. Halve, Martin Ha Minh, Daniel Durnford, Zoë Rechav, Francesco Lucarelli, Jeffrey Lazar, A. Obertacke Pollmann, J. S. Gallagher, William Luszczak, Aske Rosted, Rachel Procter-Murphy, Ava Ghadimi, Jannis Necker, M. Ackermann, Rasha Abbasi, W. Iwakiri, Peter John Cusack Coleman, Brian Clark, M. J. Larson, Perri Zilberman, Janeth Valverde, Yang Lyu, Paras Koundal, Emre Burak Yildizci, K. Meagher, Zheyang Chen, Andreas Noell, Chang Dong Rho, R. Maruyama, Ke Fang, Caterina Boscolo Meneguolo, Minjin Jeong, Ella Roberts, Vivian O'Dell, Jose Carpio, Joanna Kiryluk, Carolin Klein, Angela Zegarelli, Federico Bontempo, S. BenZvi, A. Franckowiak, Lea Schlickmann, Dirk Ryckbosch, Shuyang Deng, K. Noda, Yosuke Ashida, Waleed Esmail, K. Hultqvist, N. Whitehorn, C. Rott, Larissa Paul, M. A. DuVernois, A. Karle, Thomas Huber, N. Kurahashi, Gerrit Wrede, Hans Niederhausen, W. Rhode, Alejandra Granados, K. Andeen, Tomas Kontrimas, Karlijn Kruiswijk, Anatoli Fedynitch, Ali Kheirandish, P. A. Evenson, Tetiana Kozynets, Chun Lin, K. Helbing, Jesse Osborn, Megha Venugopal, Dennis Soldin, M. Kauer, Jean-Marco Alameddine, Sebastian BOSER, David Joseph Guevel, A. Kappes, Frank McNally, Kara Hoffman, Mark Weyrauch, Ivan Martínez-Soler, T. Montaruli, Else Magnus, Elena Manao, Yitong Liu, Alexander Novikov, Derek B Fox, Chiara Bellenghi, Krishnamoorthi Jayakumar, Patrick Hatch, Philipp Fürst, M. García, Benedikt Riedel, M. Plum, Maria Prado Rodriguez, Kayla Leonard DeHolton, Emmett Krupczak, Ramesh Koirala, Pascal Gutjahr, Pranav Sampathkumar, S. Seunarine, Sam Hori, Marc Jacquart, Tista Mukherjee, M. Stamatikos, Adam Rifaie, Doğa Veske, Lincoln Draper, Philipp Soldin, Giacomo Sommani, Tanvi Krishnan, Leonhard Eidenschink, Szabolcs Márka, Xinyue Kang, Yasutsugu Morii, Alina Kochocki, Martin Rongen, Michael Handt, Mohammad Ful Hossain Seikh, Anuj Kumar Upadhyay, N. Rad, Merlin Schaufel, John Evans, Marjon Moulai, M. Ahlers, Leander Fischer, Berit Schlüter, Kwok Lung Fan, D. J. Koskinen, Jonas Häußler, Karolin Hymon, Brandon Pries, C. Ha, Jonas Hellrung, Donghwa Kang, Stef Verpoest, Matthias Vereecken, Alexandra Trettin, J. L. Kelley, Aswathi Balagopal V., Joshua Villarreal, Robert Young, Simeon Reusch, Josh F. Peterson, Neha Navnitkumar Lad, Summer Blot, Maxwell Nakos, H. Kolanoski, Ludwig Neste, Nick Schmeisser, Lucas Witthaus, Anke Mosbrugger, Eliot Genton, Teresa Pernice, Patrick Schaile, Martin Langgård Ravn, Leonardo Ricca, L. Lu, Yuhua Yao, Shuo Zhang, Andrew Wang, Ruohan Li, Yukiho Kobayashi, Abdul Rehman, Zelong Zhang, Norio Shimizu, Wenjie Hou, Samyak Jain, Justin Mitchell, J. Becker Tjus, Satoshi Fukami, Riya Shah, Chris Weaver, Jessie Thwaites, Serap Tilav, Ralph Engel, Zsuzsa Márka, Najia Moureen Binte Amin, Robert Snihur, Dawn Williams, Arifa Khatee Zathul, Kotoyo Hoshina, Sebastian Vergara Carrasco, Stephanie Hickford, Subir Sarkar, A. Søgaard, Olga Botner, Sally Robertson, D. Seckel, Uwe Naumann, Juliana Stachurska, G. T. Przybylski, Darren Grant, Ryan Bay, Dan Hooper, Alex Olivas, Juan Pablo Yáñez, T. DeYoung, Delia Tosi, Katherine Rawlins, Torsten Schmidt, Timo Stürwald, M. U. Nisa, Todor Stanev, Andrii Terliuk, Chad Finley, H. Schieler, Andreas Weindl, Ioana Codrina Mariş, G. B. Yu, Justin Vandenbroucke, D. Berley, James Beatty, Jenni Adams, Dominik Elsässer, Nahee Park, Alfonso Garcia, Pavel Zhelnin, Alba Domi, John Hardin, L. Gerhardt, Gabriel Collin, Manish Khanal, Andrés Medina, Juanan Aguilar, Johannes Werthebach, Matti Jansson, Javier González, Steven W. Barwick, Jim Braun, Enrico Ellinger, Rebecca Corley, C. Walck, Christoph Günther, Spencer Axani, Alan Coleman, Nora Feigl, Tim Ruhe, Jim Madsen, Chris Wendt, Elizabeth Warrick, Doug Cowen, Nicholas Kamp, Richard Naab, Miriam Neumann, Jiyuan Liao, N. van Eijndhoven, M. Santander, E. Resconi, Per Arne Sevle Myhr, Zoe Brisson-Tsavoussis, Shoukat Ali, Ramy Hmaid, Sonke Schwirn, Leo Seen, Grace Sanger-Johnson, Marco Scarnera, Stephen DiKerby, Brandon Henke, Joe Baines-Holmes, Despina Mousadi, Vaidehi Poojyam, Ian Reistroffer, Lene van Rootselaar, Thomas Delmeulle, Steven Eulig, Hani KimKu, Lars Marten, Emile Moyaux, Amar Thakuri, Logan Molchany, Ilya Bodo, Lasse Dueser
article en

Abstract

Astrophysical neutrinos provide crucial insights into their sources and play a key role in multi- messenger astronomy. The neutrino flavor composition at Earth allows us to probe the mechanisms of neutrino production and cosmic ray acceleration, as well as the properties of the environments in which they originate. Understanding the flavor composition also offers a unique opportunity to test new physics in the neutrino sector. The IceCube Neutrino Observatory consists of 1 km$^3$ of ice instrumented with photomultipliers that detect neutrinos through Cherenkov radiation from their interaction products. Different neutrino interactions result in distinct event topologies, such as tracks, cascades, and double cascade events, which allow for the identification of the interacting neutrino type and measurement of the flavor composition of the astrophysical neutrino flux. In this contribution we present the results of the measurement of the flavor ratio of the High-Energy Starting Event Selection based on 12 years of data, a high-purity sample of neutrino interactions that occur inside the detector. In addition, we discuss various methods that could further improve the analysis in the future.

National Science Foundation, U.S. Department of Energy, University of Wisconsin-Madison, Nvidia, Michigan State University, Villum Fonden, Polarforskningssekretariatet, Marquette University, Western Canada Research Grid, European Commission, National Research Foundation, Deutsche Forschungsgemeinschaft, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Fonds De La Recherche Scientifique - FNRS, Belgian Federal Science Policy Office, Fonds Wetenschappelijk Onderzoek, National Research Foundation of Korea, Knut och Alice Wallenbergs Stiftelse, Vetenskapsrådet, RWTH Aachen University, Chiba University, Helmholtz Alliance for Astroparticle Physics, Alliance de recherche numérique du Canada, College of Engineering, Michigan State University, Natural Sciences and Engineering Research Council of Canada, Deutsches Elektronen-Synchrotron, Japan Society for the Promotion of Science, Marsden Fund, Institute for Global Prominent Research, Chiba University, Office of Polar Programs, Office of Advanced Cyberinfrastructure, Office of Experimental Program to Stimulate Competitive Research
Openalex Percentile: Top 88%
Astrophysics and Cosmic Phenomena
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.