Characteristics of the Diffuse Astrophysical Electron and Tau Neutrino Flux with Six Years of IceCube High Energy Cascade Data.

@article{Aartsen2020CharacteristicsOT,
  title={Characteristics of the Diffuse Astrophysical Electron and Tau Neutrino Flux with Six Years of IceCube High Energy Cascade Data.},
  author={IceCube Collaboration M.G. Aartsen and Markus Ackermann and J. H. Adams and Juan Antonio Aguilar and Markus Ahlers and Maximilian Ahrens and Cyril Martin Alispach and Karen Andeen and Tyler Brooks Anderson and I. Ansseau and Gisela Anton and Carlos A. Arguelles and Jan Auffenberg and Spencer N. Axani and P. Backes and Hadis Bagherpour and Xinhua Bai and V. A.Balagopal and A. Barbano and Steven W. Barwick and B. Bastian and V. Baum and Sebastian Baur and Ryan Bay and James J. Beatty and Kurt H. Becker and Julia K. Becker Tjus and Segev BenZvi and David Berley and Elisa Bernardini and David Z. Besson and Gary Binder and Daniel Bindig and Erik Blaufuss and S. Blot and Christian Bohm and Sebastian Boser and Olga Botner and Jakob Bottcher and {\'E}tienne Bourbeau and James Bourbeau and F. Bradascio and J. Braun and Stephanie Bron and Jannes Brostean-Kaiser and A. Burgman and J. Buscher and Raffaela Busse and Tessa Carver and C. Chen and E. Cheung and Dmitry Chirkin and S. Choi and Ken Clark and Lew Classen and A. Coleman and Gabriel H. Collin and Janet M. Conrad and Paul Coppin and P. Correa and D. F. Cowen and R. Cross and P. Dave and Catherine De Clercq and James DeLaunay and Hans Peter Dembinski and Kunal Deoskar and Simon De Ridder and Paolo Desiati and Krijn D. de Vries and G. de Wasseige and Meike de With and Tyce DeYoung and A. Diaz and J. C. D'iaz-V'elez and H. Dujmovic and Matthew Dunkman and Emily Dvorak and Benjamin Eberhardt and Thomas Ehrhardt and Philipp Eller and Ralph Engel and Paul A. Evenson and Sam Fahey and Ali R. Fazely and John Felde and Kirill Filimonov and Chad Finley and Derek B. Fox and Anna Franckowiak and E. Friedman and A. Fritz and Thomas K. Gaisser and J. Gallagher and E. Ganster and Simone Garrappa and Lisa Marie Gerhardt and Karim Ghorbani and Theo Glauch and Thorsten Glusenkamp and Azriel Goldschmidt and J. G. Gonzalez and Darren Grant and T. Gr'egoire and Zachary Griffith and Spencer Griswold and Michael Gunder and Mustafa Emre Gunduz and Christian Haack and Allan Hallgren and Robert Halliday and L. Halve and Francis Halzen and Kael D. Hanson and Andreas Haungs and Dustin Hebecker and David Heereman and Patrick Heix and Klaus Helbing and Robert Eugene Hellauer and Felix Henningsen and Stephanie Virginia Hickford and Joshua Hignight and Gary C. Hill and Kara D. Hoffman and Ruth Hoffmann and Tobias Hoinka and Ben Hokanson-Fasig and Kotoyo Hoshina and F. Huang and Martin E. Huber and T. Huber and Klas Hultqvist and Mirco Hunnefeld and Raamis Hussain and Seongjin In and N. Iovine and Aya Ishihara and Mattias Jansson and George S. Japaridze and Minjin Jeong and Kyle Jero and B. J. P. Jones and Frederic Jonske and R. Joppe and D. Kang and W. Kang and Alexander Kappes and David Kappesser and Timo Karg and M. Karl and Albrecht Karle and Uli Katz and Matthew Kauer and John Lawrence Kelley and Ali Kheirandish and J. H. Kim and T. Kintscher and Joanna Kiryluk and Teresa Kittler and Spencer R. Klein and Ramesh Koirala and Hermann Kolanoski and Lutz Kopke and Claudio Kopper and Sandro Kopper and D. Jason Koskinen and Marek Kowalski and Kai Michael Krings and G. Kruckl and N. Kulacz and Naoko Kurahashi and Andreas L Kyriacou and Justin Lanfranchi and Michael James Larson and F. Lauber and Jeffrey Lazar and K. Leonard and Mariola Lesiak-Bzdak and Agnieszka Leszczy'nska and Martin Leuermann and Q. R. Liu and E. Lohfink and C. J. Lozano Mariscal and L. Lu and Fabrizio Lucarelli and Jan Lunemann and W. Luszczak and Yang Lyu and W. Y. Ma and J. Madsen and Giuliano Maggi and K. Mahn and Yuya Makino and P. Mallik and K. Mallot and Sarah Mancina and Ioana Marics and Reina Maruyama and Keiichi Mase and Ryan Maunu and Frank McNally and Kevin J. Meagher and Morten Medici and Alberto Martin Gago Medina and M. Meier and Stephan Meighen-Berger and G. Merino and Thomas Meures and Jessica Micallef and Daniela Mockler and G. Moment'e and Teresa Montaruli and R. W. Moore and Robert M. Morse and M. Moulai and Peter Muth and Ryo Nagai and Uwe Naumann and Gary L. Neer and Hans Niederhausen and M. U. Nisa and Sarah C. Nowicki and David R. Nygren and A. Obertacke Pollmann and Marie Johanna Oehler and Alexander R. Olivas and Aongus O'Murchadha and E. O’Sullivan and Tomasz Palczewski and Hershal Pandya and Daria Pankova and N. Park and Patrick Peiffer and Carlos P'erez de los Heros and Saskia Philippen and Damian Pieloth and Elisa Pinat and Alex Pizzuto and M. Plum and Alessio Porcelli and P. Buford Price and Gerald T. Przybylski and C. Raab and Amirreza Raissi and Mohamed Rameez and Ludwig Rauch and Katherine Rawlins and Immacolata Carmen Rea and A. Rehman and Ren{\'e} Reimann and Ben Relethford and Max Renschler and Giovanni Renzi and Elisa Resconi and Wolfgang Rhode and Michael Richman and S. M. Robertson and Martin Rongen and Carsten Rott and Tim Ruhe and Dirk Ryckbosch and Devyn Rysewyk and Ibrahim Safa and S. E. Sanchez Herrera and A. Sandrock and J. Sandroos and Marcos Santander and Subir Sarkar and Konstancja Satalecka and Merlin Schaufel and Harald Schieler and Philipp Schlunder and Timothy W. Schmidt and A. Schneider and J. Schneider and Frank G. Schroder and L. Schumacher and S. Sclafani and David Seckel and Surujhdeo Seunarine and Shefali Shefali and M. Silva and Robert Snihur and J. Soedingrekso and Dennis Soldin and M. Song and G. M. Spiczak and Christian Spiering and J. Stachurska and Michael Stamatikos and Todor Stanev and Robert Stein and J. Stettner and Anna Steuer and Thorsten Stezelberger and Robert G. Stokstad and A. Stossl and Nora Linn Strotjohann and Timo Sturwald and T. Stuttard and Gregory W. Sullivan and Ignacio J. Taboada and F. Tenholt and Samvel Ter-Antonyan and Andrii Terliuk and Serap Tilav and K. Tollefson and L. Tomankova and Christoph Tonnis and Simona Toscano and Delia Tosi and A. Trettin and Maria Tselengidou and Chun Fai Tung and Andrea Turcati and Roxanne Turcotte and C. F. Turley and Bunheng Ty and Elisabeth Unger and M. A. Unland Elorrieta and Marcel Usner and Justin Vandenbroucke and Ward Van Driessche and Daan van Eijk and Nick van Eijndhoven and Jakob van Santen and S. Verpoest and Matthias Vraeghe and Christian Walck and A. Wallace and Marius Wallraff and Nancy Wandkowsky and Travis B. Watson and C. Weaver and Andreas Weindl and Matthew J Weiss and J. Weldert and C. Wendt and Johannes Werthebach and B. J. Whelan and Nathan Whitehorn and Klaus Wiebe and Christopher Wiebusch and Logan Wille and D. R. W. Williams and L. Wills and Matthias Wolf and Jeffrey Scott Wood and Terri R. Wood and Kurt Woschnagg and Gerrit Wrede and D. L. Xu and X. Xu and Y. Xu and Juan Pablo Y{\'a}{\~n}ez and Gaurang B. Yodh and Shigeru Yoshida and T. Yuan and M. Zocklein},
  journal={Physical review letters},
  year={2020},
  volume={125 12},
  pages={
          121104
        }
}
We report on the first measurement of the astrophysical neutrino flux using particle showers (cascades) in IceCube data from 2010-2015. Assuming standard oscillations, the astrophysical neutrinos in this dedicated cascade sample are dominated (∼90%) by electron and tau flavors. The flux, observed in the sensitive energy range from 16 TeV to 2.6 PeV, is consistent with a single power-law model as expected from Fermi-type acceleration of high energy particles at astrophysical sources. We find the… 

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