Combined significance of spatial coincidence of high energy neutrinos from PSR B1509-58 by Super-Kamiokande and MACRO

Desai, Shantanu (2022) Combined significance of spatial coincidence of high energy neutrinos from PSR B1509-58 by Super-Kamiokande and MACRO. Journal of Cosmology and Astroparticle Physics, 2022 (08). ISSN 1475-7516

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Abstract

In their searches for astrophysical point sources of high energy neutrinos, both the Super-Kamiokande and MACRO neutrino detectors saw the largest angular excess from the same source, viz. PSR B1509-58. We estimate the probability for the observed number of events by both Super-Kamiokande and MACRO to be a chance coincidence due to atmospheric neutrino background. We find that this probability is about 0.4%, corresponding to 2.6σ significance. We also propose some additional tests to ascertain if this excess corresponds to an astrophysical signal or is only a background event. © 2022 IOP Publishing Ltd and Sissa Medialab.

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IITH Creators:	IITH Creators ORCiD Desai, Shantanu http://orcid.org/0000-0002-0466-3288
Item Type:	Article
Uncontrolled Keywords:	Frequentist statistics; neutrino astronomy; neutrino detectors; radio pulsars
Subjects:	Physics
Divisions:	Department of Physics
Depositing User:	. LibTrainee 2021
Date Deposited:	16 Aug 2022 06:55
Last Modified:	16 Aug 2022 06:55
URI:	http://raiithold.iith.ac.in/id/eprint/10181
Publisher URL:	http://doi.org/10.1088/1475-7516/2022/08/001
OA policy:	https://v2.sherpa.ac.uk/id/publication/11312
Related URLs:	Author

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