Evidence for a Spectral Break or Curvature in the Spectrum of Astrophysical Neutrinos from 5 TeV to 10 PeV
  • Abbasi, R.
  • Ackermann, M.
  • Adams, J.
  • Agarwalla, S.K.
  • Aguilar, J.A.
  • ... Ha, C.
  • 외 421명
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초록

We report improved measurements of the all flavor astrophysical neutrino spectrum with IceCube by combining complementary neutrino samples in two independent analyses. Both analyses show evidence of a harder spectrum at energies below ∼30  TeV compared to higher energies where the spectrum is well characterized by a power law. The spectrum is better described by a log parabola or a broken power law, the latter being the preferred model. Both, however, reject a single power law over an energy range 5 TeV–10 PeV with a significance >4⁢, providing new constraints on properties of cosmic neutrino sources.

제목
Evidence for a Spectral Break or Curvature in the Spectrum of Astrophysical Neutrinos from 5 TeV to 10 PeV
저자
Abbasi, R.Ackermann, M.Adams, J.Agarwalla, S.K.Aguilar, J.A.Ahlers, M.Alameddine, J.M.Ali, S.Amin, N.M.Andeen, K.Arguelles, C.Ashida, Y.Athanasiadou, S.Axani, S.N.Babu, R.Bai, X.Baines-Holmes, J.Balagopal, V.A.Barwick, S.W.Bash, S.Basu, V.Bay, R.Beatty, J.J.Becker, Tjus J.Behrens, P.Beise, J.Bellenghi, C.Benkel, B.BenZvi, S.Berley, D.Bernardini, E.Besson, D.Z.Blaufuss, E.Bloom, L.Blot, S.Bodo, I.Bontempo, F.Book, Motzkin J.Y.Boscolo, Meneguolo C.Boser, S.Botner, O.Bottcher, J.Braun, J.Brinson, B.Brisson-Tsavoussis, Z.Burley, R.T.Butterfield, D.Campana, M.A.Carloni, K.Carpio, J.Chattopadhyay, S.Chau, N.Chen, Z.Chirkin, D.Choi, S.Clark, B.A.Coleman, A.Coleman, P.Collin, G.H.Coloma, Borja D.A.Connolly, A.Conrad, J.M.Corley, R.Cowen, D.F.De, Clercq C.Delaunay, J.J.Delgado, D.Delmeulle, T.Deng, S.Desiati, P.De, Vries K.D.De, Wasseige G.DeYoung, T.Diaz-Velez, J.C.DiKerby, S.Dittmer, M.Domi, A.Draper, L.Dueser, L.Durnford, D.Dutta, K.Duvernois, M.A.Ehrhardt, T.Eidenschink, L.Eimer, A.Eller, P.Ellinger, E.Elsasser, D.Engel, R.Erpenbeck, H.Esmail, W.Eulig, S.Evans, J.Evenson, P.A.Fan, K.L.Fang, K.Farrag, K.Fazely, A.R.Fedynitch, A.Feigl, N.Finley, C.Fischer, L.Fox, D.Franckowiak, A.Fukami, S.Furst, P.Gallagher, J.Ganster, E.Garcia, A.Garcia, M.Garg, G.Genton, E.Gerhardt, L.Ghadimi, A.Glaser, C.Glusenkamp, T.Gonzalez, J.G.Goswami, S.Granados, A.Grant, D.Gray, S.J.Griffin, S.Griswold, S.Groth, K.M.Guevel, D.Gunther, C.Gutjahr, P.Ha, C.Haack, C.Hallgren, A.Halve, L.Halzen, F.Hamacher, L.Ha, Minh M.Handt, M.Hanson, K.Hardin, J.Harnisch, A.A.Hatch, P.Haungs, A.Haussler, J.Helbing, K.Hellrung, J.Henke, B.Hennig, L.Henningsen, F.Heuermann, L.Hewett, R.Heyer, N.Hickford, S.Hidvegi, A.Hill, C.Hill, G.C.Hmaid, R.Hoffman, K.D.Hooper, D.Hori, S.Hoshina, K.Hostert, M.Hou, W.Huber, T.Hultqvist, K.Hymon, K.Ishihara, A.Iwakiri, W.Jacquart, M.Jain, S.Janik, O.Jansson, M.Jeong, M.Jin, M.Kamp, N.Kang, D.Kang, W.Kang, X.Kappes, A.Kardum, L.Karg, T.Karl, M.Karle, A.Katil, A.Kauer, M.Kelley, J.L.Khanal, M.Khatee, Zathul A.Kheirandish, A.Kimku, H.Kiryluk, J.Klein, C.Klein, S.R.Kobayashi, Y.Kochocki, A.Koirala, R.Kolanoski, H.Kontrimas, T.Kopke, L.Kopper, C.Koskinen, D.J.Koundal, P.Kowalski, M.Kozynets, T.Krieger, N.Krishnamoorthi, J.Krishnan, T.Kruiswijk, K.Krupczak, E.Kumar, A.Kun, E.Kurahashi, N.Lad, N.Lagunas, Gualda C.Lallement, Arnaud L.Lamoureux, M.Larson, M.J.Lauber, F.Lazar, J.P.Leonard, Deholton K.Leszczynska, A.Liao, J.Lin, C.Liu, Y.T.Liubarska, M.Love, C.Lu, L.Lucarelli, F.Luszczak, W.Lyu, Y.Madsen, J.Magnus, E.Makino, Y.Manao, E.Mancina, S.Mand, A.Maris, I.C.Marka, S.Marka, Z.Marten, L.Martinez-Soler, I.Maruyama, R.Mauro, J.Mayhew, F.McNally, F.Mead, J.V.Meagher, K.Mechbal, S.Medina, A.Meier, M.Merckx, Y.Merten, L.Mitchell, J.Molchany, L.Montaruli, T.Moore, R.W.Morii, Y.Mosbrugger, A.Moulai, M.Mousadi, D.Moyaux, E.Mukherjee, T.Naab, R.Nakos, M.Naumann, U.Necker, J.Neste, L.Neumann, M.Niederhausen, H.Nisa, M.U.Noda, K.Noell, A.Novikov, A.Pollmann, A. ObertackeO'Dell, V.Olivas, A.Orsoe, R.Osborn, J.O'Sullivan, E.Palusova, V.Pandya, H.Parenti, A.Park, N.Parrish, V.Paudel, E.N.Paul, L.Perez, De Los Heros C.Pernice, T.Peterson, J.Plum, M.Ponten, A.Poojyam, V.Popovych, Y.Prado, Rodriguez M.Pries, B.Procter-Murphy, R.Przybylski, G.T.Pyras, L.Raab, C.Rack-Helleis, J.Rad, N.Ravn, M.Rawlins, K.Rechav, Z.Rehman, A.Reistroffer, I.Resconi, E.Reusch, S.Rho, C.D.Rhode, W.Ricca, L.Riedel, B.Rifaie, A.Roberts, E.J.Robertson, S.Rongen, M.Rosted, A.Rott, C.Ruhe, T.Ruohan, L.Ryckbosch, D.Saffer, J.Salazar-Gallegos, D.Sampathkumar, P.Sandrock, A.Sanger-Johnson, G.Santander, M.Sarkar, S.Savelberg, J.Scarnera, M.Schaile, P.Schaufel, M.Schieler, H.Schindler, S.Schlickmann, L.Schluter, B.Schluter, F.Schmeisser, N.Schmidt, T.Schroder, F.G.Schumacher, L.Schwirn, S.Sclafani, S.Seckel, D.Seen, L.Seikh, M.Seunarine, S.Sevle, Myhr P.A.Shah, R.Shefali, S.Shimizu, N.Skrzypek, B.Snihur, R.Soedingrekso, J.Sogaard, A.Soldin, D.Soldin, P.Sommani, G.Spannfellner, C.Spiczak, G.M.Spiering, C.Stachurska, J.Stamatikos, M.Stanev, T.Stezelberger, T.Sturwald, T.Stuttard, T.Sullivan, G.W.Taboada, I.Ter-Antonyan, S.Terliuk, A.Thakuri, A.Thiesmeyer, M.Thompson, W.G.Thwaites, J.Tilav, S.Tollefson, K.Toscano, S.Tosi, D.Trettin, A.Upadhyay, A.K.Upshaw, K.Vaidyanathan, A.Valtonen-Mattila, N.Valverde, J.Vandenbroucke, J.Van, Eeden T.Van, Eijndhoven N.Van, Rootselaar L.Van, Santen J.Vara, J.Varsi, F.Venugopal, M.Vereecken, M.Vergara, Carrasco S.Verpoest, S.Veske, D.Vijai, A.Villarreal, J.Walck, C.Wang, A.Warrick, E.H.S.Weaver, C.Weigel, P.Weindl, A.Weldert, J.Wen, A.Y.Wendt, C.Werthebach, J.Weyrauch, M.Whitehorn, N.Wiebusch, C.H.Williams, D.R.Witthaus, L.Wolf, M.Wrede, G.Xu, X.W.Yanez, J.P.Yao, Y.Yildizci, E.Yoshida, S.Young, R.Yu, F.Yu, S.Yuan, T.Zegarelli, A.Zhang, S.Zhang, Z.Zhelnin, P.Zilberman, P.
DOI
10.1103/2gh9-d4q7
발행일
2026-03
유형
Article
저널명
Physical Review Letters
136
12