2015年11月7日
The IceCube Neutrino Observatory, the Pierre Auger Observatory and the Telescope Array: Joint Contribution to the 34th International Cosmic Ray Conference (ICRC 2015)
- 記述言語
- 掲載種別
- 機関テクニカルレポート，技術報告書，プレプリント等
We have conducted three searches for correlations between ultra-high energy<br />
cosmic rays detected by the Telescope Array and the Pierre Auger Observatory,<br />
and high-energy neutrino candidate events from IceCube. Two cross-correlation<br />
analyses with UHECRs are done: one with 39 cascades from the IceCube<br />
`high-energy starting events' sample and the other with 16 high-energy `track<br />
events'. The angular separation between the arrival directions of neutrinos and<br />
UHECRs is scanned over. The same events are also used in a separate search<br />
using a maximum likelihood approach, after the neutrino arrival directions are<br />
stacked. To estimate the significance we assume UHECR magnetic deflections to<br />
be inversely proportional to their energy, with values $3^\circ$, $6^\circ$ and<br />
$9^\circ$ at 100 EeV to allow for the uncertainties on the magnetic field<br />
strength and UHECR charge. A similar analysis is performed on stacked UHECR<br />
arrival directions and the IceCube sample of through-going muon track events<br />
which were optimized for neutrino point-source searches.
cosmic rays detected by the Telescope Array and the Pierre Auger Observatory,<br />
and high-energy neutrino candidate events from IceCube. Two cross-correlation<br />
analyses with UHECRs are done: one with 39 cascades from the IceCube<br />
`high-energy starting events' sample and the other with 16 high-energy `track<br />
events'. The angular separation between the arrival directions of neutrinos and<br />
UHECRs is scanned over. The same events are also used in a separate search<br />
using a maximum likelihood approach, after the neutrino arrival directions are<br />
stacked. To estimate the significance we assume UHECR magnetic deflections to<br />
be inversely proportional to their energy, with values $3^\circ$, $6^\circ$ and<br />
$9^\circ$ at 100 EeV to allow for the uncertainties on the magnetic field<br />
strength and UHECR charge. A similar analysis is performed on stacked UHECR<br />
arrival directions and the IceCube sample of through-going muon track events<br />
which were optimized for neutrino point-source searches.
- ID情報
-
- arXiv ID : arXiv:1511.02109