M. G. Aartsen (Avtor), Andrej Filipčič (Avtor), Gašper Kukec Mezek (Avtor), J. P. Lundquist (Avtor), A. Saleh (Avtor), Samo Stanič (Avtor), M. Trini (Avtor), Darko Veberič (Avtor), Serguei Vorobiov (Avtor), Lili Yang (Avtor), Danilo Zavrtanik (Avtor), Marko Zavrtanik (Avtor)

Povzetek

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. No indications of correlations at discovery level are obtained for any of the searches performed. The smallest of the p-values comes from the search for correlation between UHECRs with IceCube high-energy cascades, a result that should continue to be monitored.

Ključne besede

nevtrini;kozmični žarki;ekstremne energije;observatoriji;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UNG - Univerza v Novi Gorici
UDK: 539.1
COBISS: 4124923 Povezava se bo odprla v novem oknu
ISSN: 1475-7516
Št. ogledov: 1939
Št. prenosov: 0
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

URN: URN:SI:UNG
Vrsta dela (COBISS): Delo ni kategorizirano
Strani: str. 1-33
Zvezek: ǂVol. ǂ2016
Čas izdaje: Jan. 2016
DOI: 10.1088/1475-7516/2016/01/037
ID: 11605557