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 gamma = 2.58(-0.09)(+0.10) and per-flavor normalization of phi(Astro)(per-flavor) phi 1.68(-0.22)(+0.19) x 10(-18) x GeV-1 cm(-2) s(-1) sr(-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.
Journal article
Characterization of the astrophysical diffuse neutrino flux using starting track events in IceCube
Physical review. D, v 110(2), 022001
Jul 2024
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- Title
- Characterization of the astrophysical diffuse neutrino flux using starting track events in IceCube
- Creators
- R. Abbasi - Loyola University ChicagoM. Ackermann - Deutsches Elektronen-Synchrotron DESYJ. Adams - University of CanterburyS. K. Agarwalla - University of Wisconsin–MadisonJ. 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 University PressY. Ashida - University of UtahS. Athanasiadou - Deutsches Elektronen-Synchrotron DESYL. Ausborm - RWTH Aachen UniversityS. N. Axani - University of DelawareX. Bai - South Dakota School of Mines and TechnologyA. BalagopalM. Baricevic - University of Wisconsin–MadisonS. W. Barwick - University of California SystemS. Bash - Technical University of MunichV. Basu - University of Wisconsin–MadisonR. Bay - University of California SystemJ. J. Beatty - The Ohio State UniversityJ. Becker TjusJ. Beise - Uppsala UniversityC. Bellenghi - Technical University of MunichC. Benning - RWTH Aachen UniversityS. BenZvi - University of RochesterD. Berley - University of Maryland, College ParkE. Bernardini - University of PaduaD. Z. Besson - University of KansasE. Blaufuss - University of Maryland, College ParkS. Blot - Deutsches Elektronen-Synchrotron DESYF. BontempoJ. Y. Book - Harvard University PressC. Boscolo MeneguoloS. Böser - Johannes Gutenberg University MainzO. Botner - Uppsala UniversityJ. Böttcher - RWTH Aachen UniversityJ. Braun - University of Wisconsin–MadisonB. Brinson - Georgia Institute of TechnologyJ. Brostean-Kaiser - Deutsches Elektronen-Synchrotron DESYL. Brusa - RWTH Aachen UniversityR. T. Burley - The University of AdelaideR. S. Busse - University of MünsterD. Butterfield - University of Wisconsin–MadisonM. A. Campana - Drexel UniversityI. Caracas - Johannes Gutenberg University MainzK. Carloni - Harvard University PressJ. Carpio - University of Nevada, RenoS. Chattopadhyay - University of Wisconsin–MadisonN. Chau - Université Libre de BruxellesZ. Chen - Stony Brook UniversityD. Chirkin - University of Wisconsin–MadisonS. Choi - Sungkyunkwan UniversityB. A. Clark - University of Maryland, College ParkA. Coleman - Uppsala UniversityG. H. Collin - Massachusetts Institute of TechnologyA. Connolly - The Ohio State UniversityJ. M. Conrad - Massachusetts Institute of TechnologyP. Coppin - Vrije Universiteit BrusselR. Corley - University of UtahP. 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 University PressS. 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. DeYoungA. Diaz - Massachusetts Institute of TechnologyJ. C. Díaz-Vélez - University of Wisconsin–MadisonM. Dittmer - University of MünsterA. Domi - Friedrich-Alexander-Universität Erlangen-NürnbergL. Draper - University of UtahH. Dujmovic - University of Wisconsin–MadisonM. A. DuVernois - University of Wisconsin–MadisonT. Ehrhardt - Johannes Gutenberg University MainzL. Eidenschink - Technical University of MunichA. Eimer - Friedrich-Alexander-Universität Erlangen-NürnbergP. Eller - Technical University of MunichE. Ellinger - University of WuppertalS. El Mentawi - RWTH Aachen UniversityD. Elsässer - TU Dortmund UniversityR. Engel - Institute of Particle PhysicsH. 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 - Institute of Management Business and LawA. FedynitchN. Feigl - Humboldt-Universität zu BerlinS. Fiedlschuster - Friedrich-Alexander-Universität Erlangen-NürnbergC. Finley - Stockholm UniversityL. Fischer - Deutsches Elektronen-Synchrotron DESYD. Fox - Pennsylvania State UniversityA. Franckowiak - Ruhr University BochumP. Fürst - RWTH Aachen UniversityJ. Gallagher - University of Wisconsin–MadisonE. Ganster - RWTH Aachen UniversityA. Garcia - Harvard University PressE. Genton - UCLouvainL. Gerhardt - Lawrence Berkeley National LaboratoryA. Ghadimi - University of AlabamaC. Girard-Carillo - Johannes Gutenberg University MainzC. Glaser - Uppsala UniversityT. Glüsenkamp - Friedrich-Alexander-Universität Erlangen-NürnbergJ. G. Gonzalez - University of DelawareS. Goswami - University of Nevada, RenoA. GranadosD. GrantS. J. Gray - University of Maryland, College ParkO. Gries - RWTH Aachen UniversityS. Griffin - University of Wisconsin–MadisonS. Griswold - University of RochesterK. M. Groth - University of CopenhagenC. Günther - RWTH Aachen UniversityP. Gutjahr - TU Dortmund UniversityC. Ha - Chung-Ang UniversityC. Haack - Friedrich-Alexander-Universität Erlangen-NürnbergA. Hallgren - Uppsala UniversityR. HallidayL. Halve - RWTH Aachen UniversityF. Halzen - University of Wisconsin–MadisonH. Hamdaoui - Stony Brook UniversityM. Ha MinhM. Handt - RWTH Aachen UniversityK. Hanson - University of Wisconsin–MadisonJ. Hardin - Massachusetts Institute of TechnologyA. A. HarnischP. Hatch - Queen's UniversityA. HaungsJ. Häußler - RWTH Aachen UniversityK. Helbing - University of WuppertalJ. Hellrung - Ruhr University BochumJ. Hermannsgabner - RWTH Aachen UniversityL. Heuermann - RWTH Aachen UniversityN. Heyer - Uppsala UniversityS. Hickford - University of WuppertalA. Hidvegi - Stockholm UniversityC. Hill - Chiba UniversityG. C. Hill - The University of AdelaideK. D. Hoffman - University of Maryland, College ParkS. Hori - University of Wisconsin–MadisonK. Hoshina - University of Wisconsin–MadisonM. Hostert - Harvard University PressW. HouT. HuberK. Hultqvist - Stockholm UniversityM. Hünnefeld - TU Dortmund UniversityR. Hussain - University of Wisconsin–MadisonK. Hymon - TU Dortmund UniversityA. Ishihara - Chiba UniversityW. Iwakiri - Chiba UniversityM. Jacquart - University of Wisconsin–MadisonO. Janik - Friedrich-Alexander-Universität Erlangen-NürnbergM. Jansson - Stockholm UniversityG. S. Japaridze - Clark Atlanta UniversityM. Jeong - University of UtahM. Jin - Harvard University PressB. J. P. Jones - The University of Texas at ArlingtonN. Kamp - Harvard University PressD. KangW. Kang - Sungkyunkwan UniversityX. Kang - Drexel UniversityA. Kappes - University of MünsterD. Kappesser - Johannes Gutenberg University MainzL. Kardum - TU Dortmund UniversityT. Karg - Deutsches Elektronen-Synchrotron DESYM. Karl - Technical University of MunichA. Karle - University of Wisconsin–MadisonA. Katil - University of AlbertaU. Katz - Friedrich-Alexander-Universität Erlangen-NürnbergM. Kauer - University of Wisconsin–MadisonJ. L. Kelley - University of Wisconsin–MadisonM. Khanal - University of UtahA. Khatee ZathulA. Kheirandish - University of Nevada, RenoJ. Kiryluk - Stony Brook UniversityS. R. Klein - Lawrence Berkeley National LaboratoryA. KochockiR. Koirala - University of DelawareH. Kolanoski - Humboldt-Universität zu BerlinT. Kontrimas - Technical University of MunichL. Köpke - Johannes Gutenberg University MainzC. Kopper - Friedrich-Alexander-Universität Erlangen-NürnbergD. J. Koskinen - University of CopenhagenP. Koundal - University of DelawareM. Kovacevich - Drexel UniversityM. Kowalski - Humboldt-Universität zu BerlinT. Kozynets - University of CopenhagenJ. Krishnamoorthi - University of Wisconsin–MadisonK. Kruiswijk - UCLouvainE. KrupczakA. Kumar - Deutsches Elektronen-Synchrotron DESYE. Kun - Ruhr University BochumN. Kurahashi - Drexel UniversityN. Lad - Deutsches Elektronen-Synchrotron DESYC. Lagunas GualdaM. Lamoureux - UCLouvainM. J. Larson - University of Maryland, College ParkS. Latseva - RWTH Aachen UniversityF. Lauber - University of WuppertalJ. P. Lazar - UCLouvainJ. W. Lee - Sungkyunkwan UniversityK. Leonard DeHoltonA. Leszczyńska - University of DelawareJ. Liao - Georgia Institute of TechnologyM. Lincetto - Ruhr University BochumM. Liubarska - University of AlbertaE. Lohfink - Johannes Gutenberg University MainzC. Love - Drexel UniversityC. J. Lozano MariscalL. Lu - University of Wisconsin–MadisonF. Lucarelli - University of GenevaW. Luszczak - The Ohio State UniversityY. Lyu - Lawrence Berkeley National LaboratoryJ. Madsen - University of Wisconsin–MadisonE. Magnus - Vrije Universiteit BrusselK. B. M. MahnY. Makino - University of Wisconsin–MadisonE. Manao - Technical University of MunichS. Mancina - University of Wisconsin–MadisonW. Marie SainteI. C. Mariş - Université Libre de BruxellesS. Marka - Columbia UniversityZ. Marka - Columbia UniversityM. Marsee - University of AlabamaI. Martinez-Soler - Harvard University PressR. Maruyama - Yale UniversityF. MayhewT. McElroy - University of AlbertaF. McNally - Mercer University Health Sciences CenterJ. V. Mead - University of CopenhagenK. Meagher - University of Wisconsin–MadisonS. Mechbal - Deutsches Elektronen-Synchrotron DESYA. Medina - The Ohio State UniversityM. Meier - Chiba UniversityY. Merckx - Vrije Universiteit BrusselL. Merten - Ruhr University BochumJ. MicallefJ. Mitchell - Institute of Management Business and LawT. Montaruli - University of GenevaR. W. Moore - University of AlbertaY. Morii - Chiba UniversityR. Morse - University of Wisconsin–MadisonM. Moulai - University of Wisconsin–MadisonT. MukherjeeR. Naab - Deutsches Elektronen-Synchrotron DESYR. Nagai - Chiba UniversityM. Nakos - University of Wisconsin–MadisonU. Naumann - University of WuppertalJ. Necker - Deutsches Elektronen-Synchrotron DESYA. Negi - The University of Texas at ArlingtonM. Neumann - University of MünsterH. NiederhausenM. U. NisaA. Noell - RWTH Aachen UniversityA. Novikov - University of DelawareS. C. NowickiA. Obertacke PollmannV. O’Dell - University of Wisconsin–MadisonB. OeyenA. Olivas - University of Maryland, College ParkR. Orsoe - Technical University of MunichJ. Osborn - University of Wisconsin–MadisonE. O’Sullivan - Uppsala UniversityH. Pandya - University of DelawareN. Park - Queen's UniversityG. K. Parker - The University of Texas at ArlingtonE. N. Paudel - University of DelawareL. PaulC. Pérez de los HerosT. Pernice - Deutsches Elektronen-Synchrotron DESYJ. Peterson - University of Wisconsin–MadisonS. Philippen - RWTH Aachen UniversityA. Pizzuto - University of Wisconsin–MadisonM. Plum - South Dakota School of Mines and TechnologyA. Pontén - Uppsala UniversityY. Popovych - Johannes Gutenberg University MainzM. Prado RodriguezB. PriesR. Procter-Murphy - University of Maryland, College ParkG. T. Przybylski - Lawrence Berkeley National LaboratoryC. Raab - UCLouvainJ. Rack-Helleis - Johannes Gutenberg University MainzK. Rawlins - University of Alaska AnchorageZ. Rechav - University of Wisconsin–MadisonA. Rehman - University of DelawareP. Reichherzer - Ruhr University BochumE. Resconi - Technical University of MunichS. Reusch - Deutsches Elektronen-Synchrotron DESYW. Rhode - TU Dortmund UniversityB. Riedel - University of Wisconsin–MadisonA. Rifaie - RWTH Aachen UniversityE. J. Roberts - The University of AdelaideS. Robertson - University of California SystemS. Rodan - Sungkyunkwan UniversityG. Roellinghoff - Sungkyunkwan UniversityM. Rongen - Friedrich-Alexander-Universität Erlangen-NürnbergA. Rosted - Chiba UniversityC. Rott - University of UtahT. Ruhe - TU Dortmund UniversityL. Ruohan - Technical University of MunichD. RyckboschI. Safa - University of Wisconsin–MadisonJ. Saffer - Institute of Particle PhysicsD. Salazar-GallegosP. SampathkumarA. Sandrock - University of WuppertalM. Santander - University of AlabamaS. Sarkar - University of AlbertaJ. Savelberg - RWTH Aachen UniversityP. Savina - University of Wisconsin–MadisonP. Schaile - Technical University of MunichM. Schaufel - RWTH Aachen UniversityH. SchielerS. Schindler - Friedrich-Alexander-Universität Erlangen-NürnbergB. Schlüter - University of MünsterF. Schlüter - Université Libre de BruxellesN. Schmeisser - University of WuppertalT. Schmidt - University of Maryland, College ParkJ. Schneider - Friedrich-Alexander-Universität Erlangen-NürnbergF. G. Schröder - University of DelawareL. Schumacher - Friedrich-Alexander-Universität Erlangen-NürnbergS. Sclafani - University of Maryland, College ParkD. Seckel - University of DelawareM. SeikhM. Seo - Sungkyunkwan UniversityS. SeunarineP. Sevle MyhrR. Shah - Drexel UniversityS. Shefali - Institute of Particle PhysicsN. Shimizu - Chiba UniversityM. Silva - University of Wisconsin–MadisonB. Skrzypek - University of California SystemB. Smithers - The University of Texas at ArlingtonR. Snihur - University of Wisconsin–MadisonJ. Soedingrekso - TU Dortmund UniversityA. Søgaard - University of CopenhagenD. Soldin - University of UtahP. Soldin - RWTH Aachen UniversityG. Sommani - Ruhr University BochumC. Spannfellner - Technical University of MunichG. M. SpiczakC. Spiering - Deutsches Elektronen-Synchrotron DESYM. Stamatikos - The Ohio State UniversityT. Stanev - University of DelawareT. Stezelberger - Lawrence Berkeley National LaboratoryT. Stürwald - University of WuppertalT. Stuttard - University of CopenhagenG. W. Sullivan - University of Maryland, College ParkI. Taboada - Georgia Institute of TechnologyS. Ter-Antonyan - Institute of Management Business and LawA. Terliuk - Technical University of MunichM. Thiesmeyer - RWTH Aachen UniversityW. G. Thompson - Harvard University PressJ. Thwaites - University of Wisconsin–MadisonS. Tilav - University of DelawareK. TollefsonC. Tönnis - Sungkyunkwan UniversityS. Toscano - Université Libre de BruxellesD. Tosi - University of Wisconsin–MadisonA. Trettin - Deutsches Elektronen-Synchrotron DESYR. TurcotteJ. P. TwagirayezuM. A. Unland ElorrietaA. K. Upadhyay - University of Wisconsin–MadisonK. Upshaw - Institute of Management Business and LawA. Vaidyanathan - Marquette UniversityN. Valtonen-Mattila - Uppsala UniversityJ. Vandenbroucke - University of Wisconsin–MadisonN. van Eijndhoven - Vrije Universiteit BrusselD. Vannerom - Massachusetts Institute of TechnologyJ. van Santen - Deutsches Elektronen-Synchrotron DESYJ. Vara - University of MünsterJ. Veitch-Michaelis - University of Wisconsin–MadisonM. VenugopalM. Vereecken - UCLouvainS. Verpoest - University of DelawareD. Veske - Columbia UniversityA. Vijai - University of Maryland, College ParkC. Walck - Stockholm UniversityA. Wang - Georgia Institute of TechnologyC. WeaverP. Weigel - Massachusetts Institute of TechnologyA. WeindlJ. Weldert - Pennsylvania State UniversityA. Y. Wen - Harvard University PressC. Wendt - University of Wisconsin–MadisonJ. Werthebach - TU Dortmund UniversityM. WeyrauchN. WhitehornC. H. Wiebusch - RWTH Aachen UniversityD. R. Williams - University of AlabamaL. Witthaus - TU Dortmund UniversityA. Wolf - RWTH Aachen UniversityM. Wolf - Technical University of MunichG. Wrede - Friedrich-Alexander-Universität Erlangen-NürnbergX. W. Xu - Institute of Management Business and LawJ. P. Yanez - University of AlbertaE. Yildizci - University of Wisconsin–MadisonS. Yoshida - Chiba UniversityR. Young - University of KansasS. Yu - University of UtahT. Yuan - University of Wisconsin–MadisonZ. Zhang - Stony Brook UniversityP. Zhelnin - Harvard University PressP. Zilberman - University of Wisconsin–MadisonM. Zimmerman - University of Wisconsin–MadisonIceCube Collaboration
- Publication Details
- Physical review. D, v 110(2), 022001
- Publisher
- American Physical Society
- Number of pages
- 26
- Grant note
The IceCube collaboration acknowledges the significant contributions to this manuscript from Sarah Mancina, Jesse Osborn, and Manuel Silva. The authors gratefully acknowledge the support from the following agencies and institutions: USA-U.S. National Science Foundation-Office of Polar Programs, U.S. National Science Foundation-Physics Division, U.S. National Science Foundation-EPSCoR, U.S. National Science Foundation-Office of Advanced Cyberinfrastructure, Wisconsin Alumni Research Foundation, Center for High Throughput Computing (CHTC) at the University of Wisconsin-Madison, Open Science Grid (OSG), Partnership to Advance Throughput Computing (PATh), Advanced Cyberinfrastructure Coordination Ecosystem: Services & Support (ACCESS), Frontera computing project at the Texas Advanced Computing Center, U.S. Department of Energy-National Energy Research Scientific Computing Center, Particle astrophysics research computing center at the University of Maryland, Institute for Cyber-Enabled Research at Michigan State University, Astroparticle physics computational facility at Marquette University, NVIDIA Corporation, and Google Cloud Platform; Belgium-Funds for Scientific Research (FRS-FNRS and FWO), FWO Odysseus and Big Science programmes, and Belgian Federal Science Policy Office (Belspo); Germany-Bundesministeriumfur Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Helmholtz Alliance for Astroparticle Physics (HAP), Initiative and Networking Fund of the Helmholtz Association, Deutsches Elektronen Synchrotron (DESY), and High Performance Computing cluster of the RWTH Aachen; Sweden-Swedish Research Council, Swedish Polar Research Secretariat, Swedish National Infrastructure for Computing (SNIC), and Knut and Alice Wallenberg Foundation; European Union-EGI Advanced Computing for research; Australia-Australian Research Council; Canada-Natural Sciences and Engineering Research Council of Canada, Calcul Quebec, Compute Ontario, Canada Foundation for Innovation, WestGrid, and Digital Research Alliance of Canada; Denmark-Villum Fonden, Carlsberg Foundation, and European Commission; New Zealand-Marsden Fund; Japan-Japan Society for Promotion of Science (JSPS) and Institute for Global Prominent Research (IGPR) of Chiba University; Korea-National Research Foundation of Korea (NRF); Switzerland-Swiss National Science Foundation (SNSF).
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:001280074200001
- Scopus ID
- 2-s2.0-85197645504
- Other Identifier
- 991021889865604721
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- Web of Science research areas
- Astronomy & Astrophysics
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