July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

Correlation between the UHECRs measured by the Pierre Auger Observatory and Telescope Array and neutrino candidate events from IceCube

Aug 3, 2015, 3:45 PM
15m
Yangtze 1 (World Forum)

Yangtze 1

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Oral contribution NU-EX Parallel NU 04

Speaker

Geraldina Golup (Centro Atomico Bariloche)

Description

We present the results of three searches for correlations between UHECR events measured by Telescope Array and the Pierre Auger Observatory and high-energy neutrino candidate events from IceCube. Two cross-correlation analyses of UHECRs are done: one with 28 cascades from the IceCube high-energy starting events sample and the other one with 12 high-energy tracks. The angular separation between the arrival directions of neutrinos and UHECRs is scanned. The same events are also used in a separate search stacking the neutrino arrival directions and using a maximum likelihood approach. We assume UHECR magnetic deflections inversely proportional to the energy with values 3$^\circ$, 6$^\circ$ and 9$^\circ$ at 100 EeV to account for the uncertainties on the magnetic fields and UHECR charges. A similar analysis is performed on stacked UHECR arrival directions and the IceCube 4-year sample of through-going muon-track events that was optimized for neutrino point source searches.
Collaboration IceCube & Pierre Auger & Telescope Array
Registration number following "ICRC2015-I/" 346

Primary author

Asen Christov (Universite de Geneve (CH))

Co-authors

Esteban Roulet (Centro Atomico Bariloche) Geraldina Golup (Centro Atomico Bariloche) Hiroyuki Sagawa (RIKEN) Julien Aublin (Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3) Lorenzo Caccianiga (Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3) Michael Unger (NYU & KIT) Mohamed Rameez (Universite de Geneve (CH)) Peter Tinyakov (Universite Libre de Bruxelles (ULB)) Piera Luisa Ghia (Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3) Teresa Montaruli (Universite de Geneve (CH))

Presentation materials