Search for correlations between the arrival directions of IceCube neutrino events and ultrahigh-energy cosmic rays detected by the Pierre Auger Observatory and the Telescope Array

0463980 - FZÚ 2021 RIV GB eng J - Journal Article
Aartsen, M.G. - Abraham, K. - Ackermann, M. - Blažek, Jiří - Boháčová, Martina - Chudoba, Jiří - Ebr, Jan - Mandát, Dušan - Nečesal, Petr - Palatka, Miroslav - Pech, Miroslav - Prouza, Michael - Řídký, Jan - Schovánek, Petr - Trávníček, Petr - Vícha, Jakub … Total 870 authors
Search for correlations between the arrival directions of IceCube neutrino events and ultrahigh-energy cosmic rays detected by the Pierre Auger Observatory and the Telescope Array.
Journal of Cosmology and Astroparticle Physics. Roč. 1, Jan (2016), s. 1-34, č. článku 037. ISSN 1475-7516. E-ISSN 1475-7516
R&D Projects: GA MŠMT(CZ) LG13007; GA MŠMT(CZ) 7AMB14AR005; GA ČR(CZ) GA14-17501S; GA MŠMT LM2015038
Institutional support: RVO:68378271
Keywords : neutrino experiments * ultra high energy cosmic rays * cosmic ray experiments * neutrino astronomy
OECD category: Particles and field physics
Impact factor: 4.734, year: 2016
Method of publishing: Limited access
https://doi.org/10.1088/1475-7516/2016/01/037

This paper presents the results of different searches for correlations between very high-energy neutrino candidates detected by IceCube and the highest-energy cosmic rays measured by the Pierre Auger Observatory and the Telescope Array. We first consider samples of cascade neutrino events and of high-energy neutrino-induced muon tracks, which provided evidence for a neutrino flux of astrophysical origin, and study their cross-correlation with the ultrahigh-energy cosmic ray (UHECR) samples as a function of angular separation. We also study their possible directional correlations using a likelihood method stacking the neutrino arrival directions and adopting different assumptions on the size of the UHECR magnetic deflections. Finally, we perform another likelihood analysis stacking the UHECR directions and using a sample of through-going muon tracks optimized for neutrino point-source searches with sub-degree angular resolution.

Permanent Link: http://hdl.handle.net/11104/0263073