Characterization of the astrophysical diffuse neutrino flux using starting track events in IceCube

作者：R. Abbasi, M. Ackermann, J. Adams, Sanjib Kumar Agarwalla, J. A. Aguilar, M. Ahlers, Jean-Marco Alameddine, Norliyati Mohd Amin, K. Andeen, G. Anton, Carlos A. Argüelles, Yosuke Ashida, S. Athanasiadou, L. Ausborm, Spencer Axani, X. Bai, Aswathi Balagopal V, M. Baricevic, S. W. Barwick, Simeon Bash, Vedant Basu, R. Bay, J. J. Beatty, Julia Becker Tjus, Jakob Beise, Chiara Bellenghi, Charlotte Benning, S. BenZvi, David Berley, E. Bernardini, D. Besson, E. Blaufuss, Summer Blot, Federico Bontempo, Julia Book, Caterina Boscolo Meneguolo, S. Böser, O. Botner, Jakob Bottcher, James Robert Braun, Bennett Brinson, Jannes Brostean-Kaiser, Livia Brusa, Ryan T. Burley, Raffaela Busse, Delaney Butterfield, Michael Campana, I. Caracas, K. Carloni, Javier Graciá-Carpio, S. Chattopadhyay, Thien Nhan Chau, Z. Chen, D. Chirkin, S. Choi, Brian A. Clark, Alan Coleman, G. H. Collin, A. Connolly, Janet M. Conrad, Paul Coppin, Rebecca Corley, Pablo Correa, D. F. Cowen, Pranav Dave, C. De Clercq, James DeLaunay, D. Delgado, S. Deng, Kunal Deoskar, Abhishek A. Desai, P. Desiati, Krijn D. de Vries, G. de Wasseige, T. DeYoung, Ángeles I. Díaz, Juan Carlos Diaz-Velez, Markus Dittmer, Alba Domi, Lincoln Draper, Hrvoje Dujmović, M. A. DuVernois, Thomas Ehrhardt, Leonhard Eidenschink, A. Eimer, P. Eller, E. Ellinger, Sharif El Mentawi, Dominik Elsässer, Robert Engel, Hannah Erpenbeck, John Evans, Paul A. Evenson, Kwok Lung Fan, Ke Fang, Kareem Ramadan Farrag, Ali R. Fazely, Anatoli Fedynitch, Nora Feigl, Sebastian Fiedlschuster, Chad Finley, Leander Fischer, DEREK B. FOX, A. Franckowiak, Philipp Fürst, J. S. Gallagher, Erik Ganster, Alfonso Garcia, Eliot Genton, L. Gerhardt, A. Ghadimi, C. Girard-Carillo, Christian Gläser, T. Glüsenkamp, Javier G. Gonzalez, Sreetama Goswami, Alejandra Granados, D. Grant, S. J. Gray, Oliver Gries, Sean C. Griffin, Spencer Griswold, Kathrine Mørch Groth, Christoph G. Günther, Pascal Gutjahr, Chang Hyon Ha, Christian Haack, A. Hallgren, R. Halliday, L. Halve, Francis L. Halzen, Hassane Hamdaoui, Martin Ha Minh, Michael Handt, K. Hanson, John Hardin, Alexander Harnisch, P. Hatch, Andreas Haungs, Jonas Häußler, K. Helbing, Jonas Hellrung, J. Hermannsgabner, Lars Philipp Heuermann, Nils Heyer, S. Hickford, Attila Hidvégi, Colton Hill, Gary C. Hill, K. D. Hoffman, Sam Hori, K. Hoshina, Matheus Hostert, Wenjie Hou, Thomas Huber, K. Hultqvist, Mirco Hünnefeld, Raamis Hussain, Karolin Hymon, A. Ishihara, W. Iwakiri, M. Jacquart, Oliver Janik, M. Jansson, G. S. Japaridze, Minjin Jeong, Miaochen Jin, B. J. P. Jones, N. Kamp, Donghwa Kang, Woosik Kang, Xinyue Kang, A. Kappes, David Kappesser, Leonora Kardum, T. Karg, Martina Karl, ALBRECHT KARLE, Akanksha Katil, Uli F. Katz, Matt Kauer, John L. Kelley, Manish Khanal, A. Khatee Zathul, Ali Kheirandish, J. Kiryluk, S. R. Klein, Alina Kochocki, Ramesh Koirala, Hermann Kolanoski, Tomas Kontrimas, L. Köpke, Claudio Kopper, D. J. Koskinen, Paras Koundal, Michael Kovacevich, Marek P. Kowalski, Tetiana Kozynets, J. Krishnamoorthi, K. Kruiswijk, Emmett Krupczak, Anil Kumar, Emma Kun, N. Kurahashi, Neha Navnitkumar Lad, Cristina Lagunas Gualda, M. Lamoureux, M. J. Larson, Silvia Latseva, Frederik Hermann Lauber, Jeffrey Lazar, J. W. Lee, Kayla Leonard DeHolton, Agnieszka Leszczyńska, J. Y. Liao, Massimiliano Lincetto, Maria Liubarska, Elisa Lohfink, Christina Love, C. J. Lozano Mariscal, Lixing Lu, Francesco Lucarelli, William Luszczak, Y. Lyu, J. Madsen, Else Magnus, K. B. M. Mahn, Yuya Makino, Elena Manao, Sarah Mancina, W. Marie Sainte, Ioana Codrina Mariş, Szabolcs Márka, Z. Márka, M. Marsee, Ivan Martínez-Soler, Reina H. Maruyama, Finn Mayhew, Thomas McElroy, Frank McNally, James Vincent Mead, Kevin J. Meagher, Sarah Mechbal, Andrés Medina, Maximilian Meier, Yarno Merckx, Lukas Merten, Jessie Micallef, James A. Mitchell, T. Montaruli, R. W. Moore, Yasutsugu Morii, Robert M. Morse, Marjon Moulai, Tridib Mukherjee, Richard Naab, R. Nagai, M. Nakos, Uwe Naumann, Jannis Necker, Akshima Negi, M.A. Neumann, Hans Niederhausen, Mehr Un Nisa, A. Noell, Alexander S. Novikov, Sarah Nowicki, Anna Obertacke Pollmann, V. O’Dell, Bob Oeyen, A. Olivas, R. Orsoe, John W. Osborn, E. O’Sullivan, Hershal Pandya, N. Park, Grant Parker, Ek Narayan Paudel, L. Paul, C. Pérez de los Heros, Teresa Pernice, Josh Peterson, Saskia Philippen, A. Pizzuto, Matthias Plum, Axel Pontén, Yuriy Popovych, Maria Prado Rodriguez, B. Pries, R. Procter-Murphy, G. T. Przybylski, Christoph Raab, John Rack-Helleis, K. Rawlins, Zoë Rechav, Abdul Rehman, Patrick Reichherzer, Elisa Resconi, Simeon Reusch, Wolfgang Rhode, Benedikt Riedel, Adam Rifaie, E. J. Roberts, S. Robertson, Steven T. Rodan, Gerrit Roellinghoff, Martin Rongen, Aske Rosted, C. Rott, T. Ruhe, L. Ruohan, D. Ryckbosch, Ibrahim Safa, Julian Saffer, Daniel Salazar-Gallegos, P. Sampathkumar, Alexander Sandrock, Marcos Santander, Sourav Sarkar, Sourav Sarkar, J. Savelberg, Pierpaolo Savina, Patrick Schaile, Merlin Schaufel, H. Schieler, Sabine Schindler, B. Schlüter, Felix Schlüter, Nick Schmeisser, T. Schmidt, Judith Schneider, Frank Schröder, Lisa Johanna Schumacher, S. Sclafani, D. Seckel, M. Seikh, Minhye Seo, S. Seunarine, P. Sevle Myhr, R. Shah, S. Shefali, Nobuhiro Shimizu, M. Silva, Barbara Skrzypek, B. Smithers, R. Snihur, Jan Soedingrekso, Andreas Søgaard, Dennis Soldin, Philipp Soldin, Giacomo Sommani, Christian Spannfellner, G. M. Spiczak, C. Spiering, Michael Stamatikos, Todor Stanev, T. Stezelberger, T. Stürwald, Thomas Stuttard, G. W. Sullivan, I. Taboada, Samvel Ter-Antonyan, A. Terliuk, Matthias Thiesmeyer, W. G. Thompson, Jessie Thwaites, S. Tilav, Kirsten Tollefson, Christoph Tönnis, Simona Toscano, D. Tosi, Alexander Trettin, Roxanne Turcotte, Jean Pierre Twagirayezu, Martin Unland Elorrieta, A. K. Upadhyay, K. Upshaw, A. Vaidyanathan, Nora Valtonen-Mattila, J. Vandenbroucke, Nick van Eijndhoven, David Vannerom, J. V. Santen, Jeevanbabu Vara, J. Veitch-Michaelis, M. Venugopal, M. Vereecken, Stef Verpoest, Doğa Veske, A. Vijai, Christian Walck, Andrew Wang, Chris Weaver, Philip Weigel, A. Weindl, Jan Weldert, Alex Y. Wen, Chris Wendt, Johannes Werthebach, Mark Weyrauch, N. Whitehorn, C. H. Wiebusch, Daniel R. Williams, Lucas Witthaus, Annika Wolf, Martin Wolf, Gerrit Wrede, Xiaolin Xu, J. P. Yanez, Emre Burak Yildizci, Shigeru YOSHIDA, R. Young, S. Yu, Tianlu Yuan, Zelong Zhang, Pavel Zhelnin, Perri Zilberman, Melany Zimmerman · 发表于：Physical review. D/Physical review. D. · 年份：2024 · DOI：10.1103/physrevd.110.022001 · 被引用次数：67 · 研究领域：Astrophysics and Cosmic Phenomena、Radio Wave Propagation Studies、Computational Physics and Python Applications

A measurement of the diffuse astrophysical neutrino spectrum is presented using IceCube data collected from 2011--2022 (10.3 years). We developed novel detection techniques to search for events with a contained vertex and exiting track induced by muon neutrinos undergoing a charged-current interaction. Searching for these starting track events allows us to not only more effectively reject atmospheric muons but also atmospheric neutrino backgrounds in the southern sky, opening a new window to the sub-100 TeV astrophysical neutrino sky. The event selection is constructed using a dynamic starting track veto and machine learning algorithms. We use this data to measure the astrophysical diffuse flux as a single power law flux (SPL) with a best-fit spectral index of $\ensuremath{\gamma}=2.5{8}_{\ensuremath{-}0.09}^{+0.10}$ and per-flavor normalization of ${\ensuremath{\phi}}_{\mathrm{per}\text{-flavor}}^{\text{Astro}}=1.6{8}_{\ensuremath{-}0.22}^{+0.19}\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}18}\ifmmode\times\else\texttimes\fi{}{\mathrm{GeV}}^{\ensuremath{-}1}\text{ }{\mathrm{cm}}^{\ensuremath{-}2}\text{ }{\mathrm{s}}^{\ensuremath{-}1}\text{ }{\mathrm{sr}}^{\ensuremath{-}1}$ (at 100 TeV). The sensitive energy range for this dataset is 3--550 TeV under the SPL assumption. This data was also used to measure the flux under a broken power law, however we did not find any evidence of a low energy cutoff.