Search for proton decay into three charged leptons in 0.37 megaton-years exposure of the Super-Kamiokande
File(s)PhysRevD.101.052011.pdf (1.59 MB)
Published version
Author(s)
Type
Journal Article
Abstract
A search for proton decay into three charged leptons has been performed by using
0.37
Mton
⋅
years
of data collected in Super-Kamiokande. All possible combinations of electrons, muons, and their antiparticles consistent with charge conservation were considered as decay modes. No significant excess of events has been found over the background, and lower limits on the proton lifetime divided by the branching ratio have been obtained. The limits range between
9.2
×
10
33
and
3.4
×
10
34
years
at 90% confidence level, improving by more than an order of magnitude upon limits from previous experiments. A first limit has been set for the
p
→
μ
−
e
+
e
+
mode.
0.37
Mton
⋅
years
of data collected in Super-Kamiokande. All possible combinations of electrons, muons, and their antiparticles consistent with charge conservation were considered as decay modes. No significant excess of events has been found over the background, and lower limits on the proton lifetime divided by the branching ratio have been obtained. The limits range between
9.2
×
10
33
and
3.4
×
10
34
years
at 90% confidence level, improving by more than an order of magnitude upon limits from previous experiments. A first limit has been set for the
p
→
μ
−
e
+
e
+
mode.
Date Issued
2020-03-25
Date Acceptance
2020-03-01
Citation
Physical Review D: Particles, Fields, Gravitation and Cosmology, 2020, 101 (5), pp.052011 – 1-052011 – 12
ISSN
1550-2368
Publisher
American Physical Society
Start Page
052011 – 1
End Page
052011 – 12
Journal / Book Title
Physical Review D: Particles, Fields, Gravitation and Cosmology
Volume
101
Issue
5
Copyright Statement
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
License URL
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000522162000003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Particles & Fields
Physics
GRAND UNIFIED THEORIES
Publication Status
Published
Article Number
ARTN 052011
Date Publish Online
2020-03-25