The gallium anomaly revisited

Kostensalo, J.; Suhonen, J.; Giunti, C.; Srivastava, P. C.

doi:10.1016/j.physletb.2019.06.057

dc.contributor.author	Kostensalo, J.
dc.contributor.author	Suhonen, J.
dc.contributor.author	Giunti, C.
dc.contributor.author	Srivastava, P. C.
dc.date.accessioned	2020-02-04T07:37:02Z
dc.date.available	2020-02-04T07:37:02Z
dc.date.issued	2019
dc.identifier.citation	Kostensalo, J., Suhonen, J., Giunti, C., & Srivastava, P. C. (2019). The gallium anomaly revisited. <i>Physics Letters B</i>, <i>795</i>, 542-547. <a href="https://doi.org/10.1016/j.physletb.2019.06.057" target="_blank">https://doi.org/10.1016/j.physletb.2019.06.057</a>
dc.identifier.other	CONVID_31289376
dc.identifier.uri	https://jyx.jyu.fi/handle/123456789/67709
dc.description.abstract	The gallium anomaly, i.e. the missing electron-neutrino flux from 37Ar and 51Cr electron-capture decays as measured by the GALLEX and SAGE solar-neutrino detectors, has been among us already for about two decades. We present here a new estimate of the significance of this anomaly based on cross-section calculations using nuclear shell-model wave functions obtained by exploiting recently developed two-nucleon interactions. The gallium anomaly of the GALLEX and SAGE experiments is found to be smaller than that obtained in previous evaluations, decreasing the significance from 3.0σ to 2.3σ. This result is compatible with the recent indication in favor of short-baseline disappearance due to small active-sterile neutrino mixing obtained from the combined analysis of the data of the NEOS and DANSS reactor experiments.	en
dc.format.mimetype	application/pdf
dc.language	eng
dc.language.iso	eng
dc.publisher	Elsevier
dc.relation.ispartofseries	Physics Letters B
dc.rights	CC BY 4.0
dc.subject.other	gallium anomaly
dc.subject.other	charged-current cross-sections
dc.subject.other	nuclear shell model
dc.subject.other	neutrino-nucleus interactions
dc.title	The gallium anomaly revisited
dc.type	article
dc.identifier.urn	URN:NBN:fi:jyu-202002041966
dc.contributor.laitos	Fysiikan laitos	fi
dc.contributor.laitos	Department of Physics	en
dc.type.uri	http://purl.org/eprint/type/JournalArticle
dc.type.coar	http://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatus	peerReviewed
dc.format.pagerange	542-547
dc.relation.issn	0370-2693
dc.relation.volume	795
dc.type.version	publishedVersion
dc.rights.copyright	© 2019 Published by Elsevier B.V. Funded by SCOAP3.
dc.rights.accesslevel	openAccess	fi
dc.relation.grantnumber	318043
dc.subject.yso	ydinfysiikka
dc.format.content	fulltext
jyx.subject.uri	http://www.yso.fi/onto/yso/p14759
dc.rights.url	https://creativecommons.org/licenses/by/4.0/
dc.relation.doi	10.1016/j.physletb.2019.06.057
dc.relation.funder	Suomen Akatemia	fi
dc.relation.funder	Research Council of Finland	en
jyx.fundingprogram	Akatemiahanke, SA	fi
jyx.fundingprogram	Academy Project, AoF	en
jyx.fundinginformation	This work has been partially supported by the Academy of Finland under the Academy project no. 318043. J.K. acknowledges the financial support from Jenny and Antti Wihuri Foundation. We would like to thank Prof. K. Zuber for his suggestion to tackle this topic and Prof. H. Ejiri for enlightening discussions.
dc.type.okm	A1