The IceCube high-energy starting event sample: Description and flux characterization with 7.5 years of data
Creators: name: Abbasi, R.
name: Ackermann, M.
name: Adams, J.
name: Aguilar, J. A.
name: Ahlers, M.
name: Ahrens, M.
name: Alispach, C.
name: Alves, A. A.
name: Amin, N. M.
name: Andeen, K.
name: Anderson, T.
name: Ansseau, I.
name: Anton, G.
name: Argüelles, C.
name: Axani, S.
name: Bai, X.
name: V., A. Balagopal
name: Barbano, A.
name: Barwick, S. W.
name: Bastian, B.
name: Basu, V.
name: Baum, V.
name: Baur, S.
name: Bay, R.
name: Beatty, J. J.
name: Becker, K. -H.
name: Tjus, J. Becker
name: Bellenghi, C.
name: BenZvi, S.
name: Berley, D.
name: Bernardini, E.
name: Besson, D. Z.
name: Binder, G.
name: Bindig, D.
name: Blaufuss, E.
name: Blot, S.
name: Böser, S.
name: Botner, O.
name: Böttcher, J.
name: Bourbeau, E.
name: Bourbeau, J.
name: Bradascio, F.
name: Braun, J.
name: Bron, S.
name: Brostean-Kaiser, J.
name: Burgman, A.
name: Busse, R. S.
name: Campana, M. A.
name: Chen, C.
name: Chirkin, D.
name: Choi, S.
name: Clark, B. A.
name: Clark, K.
name: Classen, L.
name: Coleman, A.
name: Collin, G. H.
name: Conrad, J. M.
name: Coppin, P.
name: Correa, P.
name: Cowen, D. F.
name: Cross, R.
name: Dave, P.
name: De Clercq, C.
name: DeLaunay, J. J.
name: Dembinski, H.
name: Deoskar, K.
name: De Ridder, S.
name: Desai, A.
name: Desiati, P.
name: de Vries, K. D.
name: de Wasseige, G.
name: de With, M.
name: DeYoung, T.
name: Dharani, S.
name: Diaz, A.
name: Díaz-Vélez, J. C.
name: Dujmovic, H.
name: Dunkman, M.
name: DuVernois, M. A.
name: Dvorak, E.
name: Ehrhardt, T.
name: Eller, P.
name: Engel, R.
name: Evans, J.
name: Evenson, P. A.
name: Fahey, S.
name: Fazely, A. R.
name: Fiedlschuster, S.
name: Fienberg, A. T.
name: Filimonov, K.
name: Finley, C.
name: Fischer, L.
name: Fox, D.
name: Franckowiak, A.
name: Friedman, E.
name: Fritz, A.
name: Fürst, P.
name: Gaisser, T. K.
name: Gallagher, J.
name: Ganster, E.
name: Garrappa, S.
name: Gerhardt, L.
name: Ghadimi, A.
name: Glauch, T.
name: Glüsenkamp, T.
name: Goldschmidt, A.
name: Gonzalez, J. G.
name: Goswami, S.
name: Grant, D.
name: Grégoire, T.
name: Griffith, Z.
name: Griswold, S.
name: Gündüz, M.
name: Haack, C.
name: Hallgren, A.
name: Halliday, R.
name: Halve, L.
name: Halzen, F.
name: Minh, M. Ha
name: Hanson, K.
name: Hardin, J.
name: Haungs, A.
name: Hauser, S.
name: Hebecker, D.
name: Helbing, K.
name: Henningsen, F.
name: Hickford, S.
name: Hignight, J.
name: Hill, C.
name: Hill, G. C.
name: Hoffman, K. D.
name: Hoffmann, R.
name: Hoinka, T.
name: Hokanson-Fasig, B.
name: Hoshina, K.
name: Huang, F.
name: Huber, M.
name: Huber, T.
name: Hultqvist, K.
name: Hünnefeld, M.
name: Hussain, R.
name: In, S.
name: Iovine, N.
name: Ishihara, A.
name: Jansson, M.
name: Japaridze, G. S.
name: Jeong, M.
name: Jones, B. J. P.
name: Joppe, R.
name: Kang, D.
name: Kang, W.
name: Kang, X.
name: Kappes, A.
name: Kappesser, D.
name: Karg, T.
name: Karl, M.
name: Karle, A.
name: Katori, T.
name: Katz, U.
name: Kauer, M.
name: Kellermann, M.
name: Kelley, J. L.
name: Kheirandish, A.
name: Kim, J.
name: Kin, K.
name: Kintscher, T.
name: Kiryluk, J.
name: Klein, S. R.
name: Koirala, R.
name: Kolanoski, H.
name: Köpke, L.
name: Kopper, C.
name: Kopper, S.
name: Koskinen, D. J.
name: Koundal, P.
name: Kovacevich, M.
name: Kowalski, M.
name: Krings, K.
name: Krückl, G.
name: Kulacz, N.
name: Kurahashi, N.
name: Kyriacou, A.
name: Gualda, C. Lagunas
name: Lanfranchi, J. L.
name: Larson, M. J.
name: Lauber, F.
name: Lazar, J. P.
name: Leonard, K.
name: Leszczyńska, A.
name: Li, Y.
name: Liu, Q. R.
name: Lohfink, E.
name: Mariscal, C. J. Lozano
name: Lu, L.
name: Lucarelli, F.
name: Ludwig, A.
name: Luszczak, W.
name: Lyu, Y.
name: Ma, W. Y.
name: Madsen, J.
name: Mahn, K. B. M.
name: Makino, Y.
name: Mallik, P.
name: Mancina, S.
name: Mandalia, S.
name: Mariş, I. C.
name: Maruyama, R.
name: Mase, K.
name: McNally, F.
name: Meagher, K.
name: Medina, A.
name: Meier, M.
name: Meighen-Berger, S.
name: Merz, J.
name: Micallef, J.
name: Mockler, D.
name: Momenté, G.
name: Montaruli, T.
name: Moore, R. W.
name: Morse, R.
name: Moulai, M.
name: Naab, R.
name: Nagai, R.
name: Naumann, U.
name: Necker, J.
name: Neer, G.
name: Nguyen, L. V.
name: Niederhausen, H.
name: Nisa, M. U.
name: Nowicki, S. C.
name: Nygren, D. R.
name: Pollmann, A. Obertacke
name: Oehler, M.
name: Olivas, A.
name: O'Sullivan, E.
name: Pandya, H.
name: Pankova, D. V.
name: Park, N.
name: Parker, G. K.
name: Paudel, E. N.
name: Peiffer, P.
name: Heros, C. Pérez de los
name: Philippen, S.
name: Pieloth, D.
name: Pieper, S.
name: Pizzuto, A.
name: Plum, M.
name: Popovych, Y.
name: Porcelli, A.
name: Rodriguez, M. Prado
name: Price, P. B.
name: Przybylski, G. T.
name: Raab, C.
name: Raissi, A.
name: Rameez, M.
name: Rawlins, K.
name: Rea, I. C.
name: Rehman, A.
name: Reimann, R.
name: Renschler, M.
name: Renzi, G.
name: Resconi, E.
name: Reusch, S.
name: Rhode, W.
name: Richman, M.
name: Riedel, B.
name: Robertson, S.
name: Roellinghoff, G.
name: Rongen, M.
name: Rott, C.
name: Ruhe, T.
name: Ryckbosch, D.
name: Cantu, D. Rysewyk
name: Safa, I.
name: Herrera, S. E. Sanchez
name: Sandrock, A.
name: Sandroos, J.
name: Santander, M.
name: Sarkar, S.
name: Sarkar, S.
name: Satalecka, K.
name: Scharf, M.
name: Schaufel, M.
name: Schieler, H.
name: Schlunder, P.
name: Schmidt, T.
name: Schneider, A.
name: Schneider, J.
name: Schröder, F. G.
name: Schumacher, L.
name: Sclafani, S.
name: Seckel, D.
name: Seunarine, S.
name: Shefali, S.
name: Silva, M.
name: Smithers, B.
name: Snihur, R.
name: Soedingrekso, J.
name: Soldin, D.
name: Spiczak, G. M.
name: Spiering, C.
name: Stachurska, J.
name: Stamatikos, M.
name: Stanev, T.
name: Stein, R.
name: Stettner, J.
name: Steuer, A.
name: Stezelberger, T.
name: Stokstad, R. G.
name: Strotjohann, N. L.
name: Stuttard, T.
name: Sullivan, G. W.
name: Taboada, I.
name: Tenholt, F.
name: Ter-Antonyan, S.
name: Tilav, S.
name: Tischbein, F.
name: Tollefson, K.
name: Tomankova, L.
name: Tönnis, C.
name: Toscano, S.
name: Tosi, D.
name: Trettin, A.
name: Tselengidou, M.
name: Tung, C. F.
name: Turcati, A.
name: Turcotte, R.
name: Turley, C. F.
name: Twagirayezu, J. P.
name: Ty, B.
name: Unger, E.
name: Elorrieta, M. A. Unland
name: Vandenbroucke, J.
name: van Eijk, D.
name: van Eijndhoven, N.
name: Vannerom, D.
name: van Santen, J.
name: Verpoest, S.
name: Vraeghe, M.
name: Walck, C.
name: Wallace, A.
name: Wandkowsky, N.
name: Watson, T. B.
name: Weaver, C.
name: Weindl, A.
name: Weiss, M. J.
name: Weldert, J.
name: Wendt, C.
name: Werthebach, J.
name: Weyrauch, M.
name: Whelan, B. J.
name: Whitehorn, N.
name: Wiebe, K.
name: Wiebusch, C. H.
name: Williams, D. R.
name: Wolf, M.
name: Wood, T. R.
name: Woschnagg, K.
name: Wrede, G.
name: Wulff, J.
name: Xu, X. W.
name: Xu, Y.
name: Yanez, J. P.
name: Yoshida, S.
name: Yuan, T.
name: Zhang, Z.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: The IceCube Neutrino Observatory has established the existence of a high-energy all-sky neutrino flux of astrophysical origin. This discovery was made using events interacting within a fiducial region of the detector surrounded by an active veto and with reconstructed energy above 60 TeV, commonly known as the high-energy starting event sample, or HESE. We revisit the analysis of the HESE sample with an additional 4.5 years of data, newer glacial ice models, and improved systematics treatment. This paper describes the sample in detail, reports on the latest astrophysical neutrino flux measurements, and presents a source search for astrophysical neutrinos. We give the compatibility of these observations with specific isotropic flux models proposed in the literature as well as generic power-law-like scenarios. Assuming $ν_e:ν_μ:ν_τ=1:1:1$, and an equal flux of neutrinos and antineutrinos, we find that the astrophysical neutrino spectrum is compatible with an unbroken power law, with a preferred spectral index of ${2.87}^{+0.20}_{-0.19}$ for the $68.3\%$ confidence interval.
description: 57 pages, 33 figures, 14 tables, additionally this work is accompanied by papers titled "Measurement of Astrophysical Tau Neutrinos in IceCube's High-Energy Starting Events" and "Measurement of the high-energy all-flavor neutrino-nucleon cross section with IceCube"