Search for Periodic Time Variations of the Solar ^{8}B Neutrino Flux between 1996 and 2018 in Super-Kamiokande.
Journal
Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141
Informations de publication
Date de publication:
14 Jun 2024
14 Jun 2024
Historique:
received:
08
11
2023
revised:
20
02
2024
accepted:
12
04
2024
medline:
1
7
2024
pubmed:
1
7
2024
entrez:
1
7
2024
Statut:
ppublish
Résumé
We report a search for time variations of the solar ^{8}B neutrino flux using 5804 live days of Super-Kamiokande data collected between May 31, 1996, and May 30, 2018. Super-Kamiokande measured the precise time of each solar neutrino interaction over 22 calendar years to search for solar neutrino flux modulations with unprecedented precision. Periodic modulations are searched for in a dataset comprising five-day interval solar neutrino flux measurements with a maximum likelihood method. We also applied the Lomb-Scargle method to this dataset to compare it with previous reports. The only significant modulation found is due to the elliptic orbit of the Earth around the Sun. The observed modulation is consistent with astronomical data: we measured an eccentricity of (1.53±0.35)%, and a perihelion shift of (-1.5±13.5) days.
Identifiants
pubmed: 38949341
doi: 10.1103/PhysRevLett.132.241803
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM