Th. Jiang.en Under.r.und Neutr.no Obser.ator.0}JUNO)f.atur.s a 20 kt multi-pur.ose under.r.und liquid scintillator.sph.r. as its main *** of.JUNO's f.atur.s make it an excellent location f.r.8B solar.neutr.no measur.me...
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Th. Jiang.en Under.r.und Neutr.no Obser.ator.0}JUNO)f.atur.s a 20 kt multi-pur.ose under.r.und liquid scintillator.sph.r. as its main *** of.JUNO's f.atur.s make it an excellent location f.r.8B solar.neutr.no measur.ments,such.as its low-ener.y.th.0}sh.ld,h.g.0}ener.y.r.solution compar.d with.water.Ch.r.nkov detector.,and much.lar.er.tar.et mass compar.d with.pr.vious liquid scintillator.*** th.s paper.we pr.sent a compr.h.nsive assessment of.JUNO's potential f.r.detecting.8B solar.neutr.nos via th. neutr.no-electr.n elastic scatter.ng.pr.cess.A r.duced 2 meV th.0}sh.ld f.r.th. r.coil electr.n ener.y.is f.und to be ach.evable,assuming.th.t th. intr.nsic r.dioactive backg.1}und^(238)U and^(232)Th.in th. liquid scintillator.can be contr.lled to 10^(-17)g.*** ten y.ar. of.data acquisition,appr.ximately.60,000 sig.al and 30,000 backg.1}und events ar. *** lar.e sample will enable an examination of.th. distor.ion of.th. r.coil electr.n spectr.m th.t is dominated by.th. neutr.no f.avor.tr.nsf.r.ation in th. dense solar.matter.wh.ch.will sh.d new lig.0} on th. inconsistency.between th. measur.d electr.n spectr. and th. pr.dictions of.th. standar. th.0}e-f.avor.neutr.no oscillation *** m^(2)_(21)=4.8times10^(-5);(7.5times10^(-5))eV^(2),JUNO can pr.vide evidence of.neutr.no oscillation in th. Ear.h.at appr.ximately.th. 3sig.a(2sig.a)level by.measur.ng.th. non-zer. sig.al r.te var.ation with.r.spect to th. solar.zenith.***,JUNO can simultaneously.measur.Delta m^2_(21)using.8B solar.neutr.nos to a pr.cision of.20% or.better.depending.on th. centr.l value,and to sub-per.ent pr.cision using.r.actor.antineutr.nos.A compar.son of.th.se two measur.ments f.om th. same detector.will h.lp under.tand th. cur.ent mild inconsistency.between th. value of.Delta m^2_(21)r.por.ed by.solar.neutr.no exper.ments and th. KamLAND exper.ment.
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