TY - JOUR
T1 - Dark Matter Neutrino Scattering in the Galactic Centre with IceCube
AU - The IceCube Collaboration
AU - McMullen, Adam
AU - Vincent, Aaron
AU - Abbasi, R.
AU - Ackermann, M.
AU - Adams, J.
AU - Aguilar, J. A.
AU - Ahlers, M.
AU - Ahrens, M.
AU - Alispach, C.
AU - Alves, A. A.
AU - Amin, N. M.
AU - An, R.
AU - Andeen, K.
AU - Anderson, T.
AU - Anton, G.
AU - Argüelles, Carlos
AU - Ashida, Y.
AU - Axani, S.
AU - Bai, X.
AU - Balagopal, A. V.
AU - Barbano, A.
AU - Barwick, S. W.
AU - Bastian, B.
AU - Basu, V.
AU - Baur, S.
AU - Bay, R.
AU - Beatty, J. J.
AU - Becker, K. H.
AU - Becker Tjus, J.
AU - Bellenghi, C.
AU - BenZvi, S.
AU - Berley, D.
AU - Bernardini, E.
AU - Besson, D. Z.
AU - Binder, G.
AU - Bindig, D.
AU - Blaufuss, E.
AU - Blot, S.
AU - Boddenberg, M.
AU - Bontempo, F.
AU - Borowka, J.
AU - Böser, S.
AU - Botner, O.
AU - Böttcher, J.
AU - Bourbeau, E.
AU - Bradascio, F.
AU - Braun, J.
AU - Bron, S.
AU - Brostean-Kaiser, J.
AU - Kiryluk, J.
N1 - Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0)
PY - 2022/3/18
Y1 - 2022/3/18
N2 - While there is evidence for the existence of dark matter, its properties have yet to be discovered. Simultaneously, the nature of high-energy astrophysical neutrinos detected by IceCube remains unresolved. If dark matter and neutrinos are coupled to each other, they may exhibit a non-zero elastic scattering cross section. Such an interaction between an isotropic extragalactic neutrino flux and dark matter would be concentrated in the Galactic Centre, where the dark matter column density is greatest. This scattering would attenuate the flux of high-energy neutrinos, which could be observed in IceCube. Using the seven-year Medium Energy Starting Events sample, we perform an unbinned likelihood analysis, searching for a signal based on a possible DM-neutrino interaction scenario. We search for a suppression of the high-energy astrophysical neutrino flux in the direction of the Galactic Centre, and compare these constraints to complementary low-energy information from large scale structure surveys and the cosmic microwave background.
AB - While there is evidence for the existence of dark matter, its properties have yet to be discovered. Simultaneously, the nature of high-energy astrophysical neutrinos detected by IceCube remains unresolved. If dark matter and neutrinos are coupled to each other, they may exhibit a non-zero elastic scattering cross section. Such an interaction between an isotropic extragalactic neutrino flux and dark matter would be concentrated in the Galactic Centre, where the dark matter column density is greatest. This scattering would attenuate the flux of high-energy neutrinos, which could be observed in IceCube. Using the seven-year Medium Energy Starting Events sample, we perform an unbinned likelihood analysis, searching for a signal based on a possible DM-neutrino interaction scenario. We search for a suppression of the high-energy astrophysical neutrino flux in the direction of the Galactic Centre, and compare these constraints to complementary low-energy information from large scale structure surveys and the cosmic microwave background.
UR - https://www.scopus.com/pages/publications/85145020804
M3 - Conference article
AN - SCOPUS:85145020804
SN - 1824-8039
VL - 395
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 569
T2 - 37th International Cosmic Ray Conference, ICRC 2021
Y2 - 12 July 2021 through 23 July 2021
ER -