Directional correlations between UHECRs and neutrinos observed with IceCube

Details Directional correlations between UHECRs and neutrinos observed with IceCube Directional correlations between UHECRs and neutrinos observed with IceCube

2010-11-04

arxiv.org/abs/1011.1093v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

4 pages, 1 figure, proceedings of ECRS 2010 held in Turku, submitted to Astrophys. Space Sci. Trans

Scientific paper

Ultra-high energy cosmic rays (UHECR) above an energy threshold of tens of EeV might undergo only small deflections due to interstellar magnetic fields. Their arrival directions would then point to regions of possible hadronic acceleration processes, which are likely to be also sources of high energy neutrinos. To search for such cosmic accelerators, we present here the first high statistics analysis of directional correlations between neutrino candidates from the IceCube Observatory and UHECR events. Data taken with IceCube in a configuration of 22 strings provided the basis for using published events from both the Pierre Auger Observatory and the HiRes experiment as reference directions in a search for coincidences with neutrinos. The analysis was optimized according to strict blindness criteria and showed an excess of neutrino candidates close to UHECR directions with a probability of 1% to occur as a random fluctuation, consistent with a background-only hypothesis. An extension of this analysis to include newer IceCube data, taken with 40 strings and using a likelihood approach, is discussed in the outlook.

Affiliated with

Also associated with

No associations

Rating

Directional correlations between UHECRs and neutrinos observed with IceCube does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Directional correlations between UHECRs and neutrinos observed with IceCube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Directional correlations between UHECRs and neutrinos observed with IceCube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-145534