Search for spatial correlations of neutrinos with ultra-high-energy Cosmic Rays

0562495 - FZÚ 2023 RIV GB eng J - Journal Article
Albert, A. - Alves, S. - André, M. - Bakalová, Alena - Blažek, Jiří - Boháčová, Martina - Chudoba, Jiří - Ebr, Jan - Hamal, Petr - Janeček, Petr - Juryšek, Jakub - Mandát, Dušan - Müller, Ana Laura - Palatka, Miroslav - Pech, Miroslav - Prouza, Michael - Řídký, Jan - dos Santos, Eva M. Martins - Schovánek, Petr - Tobiška, Petr - Trávníček, Petr - Vícha, Jakub - Urban, Federico - Yushkov, Alexey … Total 1027 authors
Search for spatial correlations of neutrinos with ultra-high-energy Cosmic Rays.
Astrophysical Journal. Roč. 934, č. 2 (2022), č. článku 164. ISSN 0004-637X. E-ISSN 1538-4357
R&D Projects: GA MŠMT LTT18004; GA MŠMT LM2015038; GA MŠMT(CZ) EF18_046/0016010; GA MŠMT EF16_013/0001402
Grant - others:OP VVV - AUGERII.CZ(XE) CZ.02.1.01/0.0/0.0/18_046/0016010; OP VVV - AUGER-CZ(XE) CZ.02.1.01/0.0/0.0/16_013/0001402
Research Infrastructure: AUGER-CZ II - 90102
Institutional support: RVO:68378271
Keywords : neutrino astronomy * high energy astrophysics * ultra-high-energy cosmic radiation
OECD category: Particles and field physics
Impact factor: 4.9, year: 2022
Method of publishing: Open access

For several decades, the origin of ultra-high-energy cosmic rays (UHECRs) has been an unsolved question of high-energy astrophysics. One approach for solving this puzzle is to correlate UHECRs with high-energy neutrinos, since neutrinos are a direct probe of hadronic interactions of cosmic rays and are not deflected by magnetic fields. In this paper, we present three different approaches for correlating the arrival directions of neutrinos with the arrival directions of UHECRs. The neutrino data are provided by the IceCube Neutrino Observatory and ANTARES, while the UHECR data with energies above similar to 50 EeV are provided by the Pierre Auger Observatory and the Telescope Array. All experiments provide increased statistics and improved reconstructions with respect to our previous results reported in 2015. The first analysis uses a high-statistics neutrino sample optimized for point-source searches to search for excesses of neutrino clustering in the vicinity of UHECR directions.

Permanent Link: https://hdl.handle.net/11104/0335731