| 报告题目： |
Angular correlation of cosmic neutrinos with astrophysical
cosmic-ray and y-ray sources |
| 报告人： |
Reetanjali Moharana |
| 报告人单位： |
希伯来大学 |
| 报告时间： |
2017年10月10日（周二） 10：00 |
| 报告地点： |
东七楼，427室（四楼） |
| 报告摘要： |
|
| |
IceCube is the world’s largest detector for cosmic neutrinos, built in South pole. Observed 54 high-energy starting events (HESE) by IceCube is one of the main attractions for astrophysics as well as particle
physics. This sample collected within 1347 days of operation, have deposited energy ranging from 20 TeV to 2 PeV. These events correspond to a 6.5σ detection of cosmic neutrinos above an estimated 9.0 ^+8.0 _−2.2 atmospheric neutrino background events and 12.6 ± 5.1 atmospheric
muon background events. The origin of these cosmic neutrinos is one ofthe outstanding puzzles in recent years. An astrophysical origin can be established by a significant correlation of the HESE neutrino with different counterpart directions. Ultra-high energy cosmic rays
(UHECRs), high energy gamma rays are one of the important counterparts for astrophysical neutrinos. We have studied the angular cross correlation between the HESE events with UHECRs and different source catalogs of high energy γ-rays detected by Fermi |
| 报告人简介： |
|
| |
Postdoctoral fellow at Hebrew University, Jerusalem, Israel with Prof
Tsvi Piran.
Postdoctoral fellow at University of Johannesburg, South Africa with
Prof. Soebur Razzaque from 2014 to 2016.
PhD from Indian Institute of Technology Bombay, Mumbai India in the
year 2014 with Thesis title "Ultrahigh energy cosmic rays and its
Messengers" under the Supervision of Prof. Uma Sankar and Nayantara
Gupta. |
