A study of correlation between IceCube neutrino events and Ultra high energy cosmic rays

Reetanjali Moharana, Soebur Razzaque

Research output: Contribution to journalConference articlepeer-review


Sources for cosmic neutrino events detected by the IceCube Neutrino Observatory with energy above 30 TeV are hard to find due to their poor angular resolutions. Ultrahigh-energy cosmic rays (UHECRs) are detected with better angular resolutions above 100 EeV energies and can be used to check if the same astrophysical sources are responsible for producing both neutrinos and UHECRs. We test the correlation of UHECR data of the Pierre Auger Observatory, Telescope Array and past cosmic-ray experiments with IceCube neutrino events using statistical methods which emphasize invariant quantities. We find that the arrival directions of the 3yr IceCube detected cosmic neutrinos are correlated with > 100 EeV UHECR arrival directions at confidence level 90% . In our recent approach we have tried to find a correlation of the 4 yr IceCube detected High-Energy Starting Events (HESE) neutrino events with UHECRs from PAO and TA. We found more than 3s correlation for PAO only and TA+PAO UHECRs events > 100 EeV.

Original languageEnglish
Article number012
JournalProceedings of Science
Publication statusPublished - 2015
Event3rd Annual Conference on High Energy Astrophysics in Southern Africa, HEASA 2015 - Johannesburg, South Africa
Duration: 18 Jun 201520 Jun 2015

ASJC Scopus subject areas

  • Multidisciplinary


Dive into the research topics of 'A study of correlation between IceCube neutrino events and Ultra high energy cosmic rays'. Together they form a unique fingerprint.

Cite this