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dc.contributor.authorJUNO Collaboration
dc.date.accessioned2021-03-01T06:49:52Z
dc.date.available2021-03-01T06:49:52Z
dc.date.issued2021
dc.identifier.citationJUNO Collaboration. (2021). Feasibility and physics potential of detecting 8B solar neutrinos at JUNO. <i>Chinese Physics C</i>, <i>45</i>(2), Article 023004. <a href="https://doi.org/10.1088/1674-1137/abd92a " target="_blank">https://doi.org/10.1088/1674-1137/abd92a </a>
dc.identifier.otherCONVID_51631075
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/74430
dc.description.abstractThe Jiangmen Underground Neutrino Observatory (JUNO) features a 20 kt multi-purpose underground liquid scintillator sphere as its main detector. Some of JUNO's features make it an excellent location for B-8 solar neutrino measurements, such as its low-energy threshold, high energy resolution compared with water Cherenkov detectors, and much larger target mass compared with previous liquid scintillator detectors. In this paper, we present a comprehensive assessment of JUNO's potential for detecting B solar neutrinos via the neutrino-electron elastic scattering process. A reduced 2 MeV threshold for the recoil electron energy is found to be achievable, assuming that the intrinsic radioactive background U-238 and Th-232 in the liquid scintillator can be controlled to 10(-17) g/g. With ten years of data acquisition, approximately 60,000 signal and 30,000 background events are expected. This large sample will enable an examination of the distortion of the recoil electron spectrum that is dominated by the neutrino flavor transformation in the dense solar matter, which will shed new light on the inconsistency between the measured electron spectra and the predictions of the standard three-flavor neutrino oscillation framework. If Delta m(21)(2) = 4.8 x 10(-5) (7.5 x 10(-5)) eV(2), JUNO can provide evidence of neutrino oscillation in the Earth at approximately the 3 sigma(2 sigma) level by measuring the non-zero signal rate variation with respect to the solar zenith angle. Moreover, JUNO can simultaneously measure Delta m(21)(2) using B-8 solar neutrinos to a precision of 20% or better, depending on the central value, and to sub-percent precision using reactor antineutrinos. A comparison of these two measurements from the same detector will help understand the current mild inconsistency between the value of Delta m(21)(2) reported by solar neutrino experiments and the KamLAND experiment.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherIOP Publishing
dc.relation.ispartofseriesChinese Physics C
dc.rightsCC BY 3.0
dc.subject.othersolar neutrino
dc.subject.otherJUNO
dc.titleFeasibility and physics potential of detecting 8B solar neutrinos at JUNO
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202103011798
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineFysiikkafi
dc.contributor.oppiaineYdin- ja kiihdytinfysiikan huippuyksikköfi
dc.contributor.oppiainePhysicsen
dc.contributor.oppiaineCentre of Excellence in Nuclear and Accelerator Based Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.relation.issn1674-1137
dc.relation.numberinseries2
dc.relation.volume45
dc.type.versionpublishedVersion
dc.rights.copyright© 2021 Chinese Physical Society
dc.rights.accesslevelopenAccessfi
dc.subject.ysotutkimuslaitteet
dc.subject.ysohiukkasfysiikka
dc.subject.ysoilmaisimet
dc.subject.ysoydinfysiikka
dc.subject.ysoneutriinot
dc.subject.ysoneutriino-oskillaatio
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p2440
jyx.subject.urihttp://www.yso.fi/onto/yso/p15576
jyx.subject.urihttp://www.yso.fi/onto/yso/p4220
jyx.subject.urihttp://www.yso.fi/onto/yso/p14759
jyx.subject.urihttp://www.yso.fi/onto/yso/p5219
jyx.subject.urihttp://www.yso.fi/onto/yso/p38690
dc.rights.urlhttps://creativecommons.org/licenses/by/3.0/
dc.relation.doi10.1088/1674-1137/abd92a
jyx.fundinginformationThis work was supported by the Chinese Academy of Sciences, the National Key R&D Program of China, the CAS Center for Excellence in Particle Physics, the Joint Large-Scale Scientific Facility Funds of the NSFC and CAS, Wuyi University, and the Tsung-Dao Lee Institute of Shanghai Jiao Tong University in China, the Institut National de Physique Nucléaire et de Physique de Particules (IN2P3) in France, the Istituto Nazionale di Fisica Nucleare (INFN) in Italy, the Fond de la Recherche Scientifique (F.R.S-FNRS) and FWO under the "Excellence of Science – EOS" in Belgium, the Conselho Nacional de Desenvolvimento Científico e Tecnològico in Brazil, the Agencia Nacional de Investigación y Desarrollo in Chile, the Charles University Research Centre and the Ministry of Education, Youth, and Sports in Czech Republic, the Deutsche Forschungsgemeinschaft (DFG), the Helmholtz Association, and the Cluster of Excellence PRISMA+ in Germany, the Joint Institute of Nuclear Research (JINR), Lomonosov Moscow State University, and Russian Foundation for Basic Research (RFBR) in Russia, the MOST and MOE in Taiwan, the Chulalongkorn University and Suranaree University of Technology in Thailand, and the University of California at Irvine in USA


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