First all-flavor search for transient neutrino emission using 3-years of IceCube DeepCore data
Collaboration
19 pages
Published in:
- JCAP 01 (2022) 027
- Published: Jan 18, 2022
e-Print:
- 2011.05096 [astro-ph.HE]
Experiments:
View in:
Citations per year
Abstract: (IOP)
Since the discovery of a flux of high-energy astrophysical neutrinos, searches for their origins have focused primarily at TeV-PeV energies. Compared to sub-TeV searches, high-energy searches benefit from an increase in the neutrino cross section, improved angular resolution on the neutrino direction, and a reduced background from atmospheric neutrinos and muons. However, the focus on high energy does not preclude the existence of sub-TeV neutrino emission where IceCube retains sensitivity. Here we present the first all-flavor search from IceCube for transient emission of low-energy neutrinos, focusing on the energy region of 5.6-100 GeV using three years of data obtained with the IceCube-DeepCore detector. We find no evidence of transient neutrino emission in the data, thus leading to a constraint on the volumetric rate of astrophysical transient sources in the range of ∼ 705-2301 Gpc yr for sources following a subphotospheric energy spectrum with a mean energy of 100 GeV and a bolometric energy of 10 erg.Note:
- 16 pages, 10 figures. Update from previous arXiv version reflects a change to the title, minor text edits, and additional description of the statistical derivation of the results, which were all part of the JCAP review process
- neutrino astronomy
- neutrino experiments
- gamma ray burst experiments
- neutrino: atmosphere
- neutrino: energy: low
- energy: high
- IceCube
- GeV
- angular resolution
- energy spectrum
References(31)
Figures(14)
- [1]
- [2]
- [3]
- [4]
- [5]
- [6]
- [7]
- [8]
- [9]
- [10]
- [11]
- [13]
- [15]
- [16]
- [17]
- [18]
- [19]
- [20]
- [21]
- [22]
- [23]
- [24]
- [25]