Improved measurement of electron antineutrino disappearance at Daya Bay
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AbstractWe report an improved measurement of the neutrino mixing angle theta(13) from the Daya Bay Reactor Neutrino Experiment. We exclude a zero value for sin(2)2 theta(13) with a significance of 7.7 standard deviations. Electron antineutrinos from six reactors of 2.9 GW(th) were detected in six antineutrino detectors deployed in two near (flux-weighted baselines of 470 m and 576 m) and one far (1648 m) underground experimental halls. Using 139 days of data, 28909 (205308) electron antineutrino candidates were detected at the far hall (near halls). The ratio of the observed to the expected number of antineutrinos assuming no oscillations at the far hall is 0.944 +/- 0.007(stat.)+/- 0.003(syst.). An analysis of the relative rates in six detectors finds sin(2)2 theta(13)= 0.089 +/- 0.010(stat.)+/- 0.005(syst.) in a three-neutrino framework.
All Author(s) ListAn FP, An Q, Bai JZ, Balantekin AB, Band HR, Beriguete W, Bishai M, Blyth S, Brown RL, Cao GF, Cao J, Carr R, Chan WT, Chang JF, Chang Y, Chasman C, Chen HS, Chen HY, Chen SJ, Chen SM, Chen XC, Chen XH, Chen XS, Chen Y, Chen YX, Cherwinka JJ, Chu MC, Cummings JP, Deng ZY, Ding YY, Diwan MV, Draeger E, Du XF, Dwyer D, Edwards WR, Ely SR, Fang SD, Fu JY, Fu ZW, Ge LQ, Gill RL, Gonchar M, Gong GH, Gong H, Gornushkin YA, Gu WQ, Guan MY, Guo XH, Hackenburg RW, Hahn RL, Hans S, Hao HF, He M, He Q, Heeger KM, Heng YK, Hinrichs P, Hor YK, Hsiung YB, Hu BZ, Hu T, Huang HX, Huang HZ, Huang XT, Huber P, Issakov V, Isvan Z, Jaffe DE, Jetter S, Ji XL, Ji XP, Jiang HJ, Jiao JB, Johnson RA, Kang L, Kettell SH, Kramer M, Kwan KK, Kwok MW, Kwok T, Lai CY, Lai WC, Lai WH, Lau K, Lebanowski L, Lee J, Lei RT, Leitner R, Leung JKC, Leung KY, Lewis CA, Li F, Li GS, Li QJ, Li WD, Li XB, Li XN, Li XQ, Li Y, Li ZB, Liang H, Lin CJ, Lin GL, Lin SK, Lin YC, Ling JJ, Link JM, Littenberg L, Littlejohn BR, Liu DW, Liu JC, Liu JL, Liu YB, Lu C, Lu HQ, Luk A, Luk KB, Ma QM, Ma XB, Ma XY, Ma YQ, McDonald KT, McFarlane MC, McKeown RD, Meng Y, Mohapatra D, Nakajima Y, Napolitano J, Naumov D, Nemchenok I, Ngai HY, Ngai WK, Nie YB, Ning Z, Ochoa-Ricoux JP, Olshevski A, Patton S, Pec V, Peng JC, Piilonen LE, Pinsky L, Pun CSJ, Qi FZ, Qi M, Qian X, Raper N, Ren J, Rosero R, Roskovec B, Ruan XC, Shao BB, Shih K, Steiner H, Sun GX, Sun JL, Tagg N, Tam YH, Tanaka HK, Tang X, Themann H, Torun Y, Trentalange S, Tsai O, Tsang KV, Tsang RHM, Tull CE, Tung YC, Viren B, Vorobel V, Wang CH, Wang LS, Wang LY, Wang LZ, Wang M, Wang NY, Wang RG, Wang W, Wang X, Wang YF, Wang Z, Wang Z, Wang ZM, Webber DM, Wei HY, Wei YD, Wen LJ, Whisnant K, White CG, Whitehead L, Williamson Y, Wise T, Wong HLH, Worcester ET, Wu FF, Wu Q, Xi JB, Xia DM, Xing ZZ, Xu J, Xu J, Xu JL, Xu Y, Xue T, Yang CG, Yang L, Ye M, Yeh M, Yeh YS, Young BL, Yu ZY, Zhan L, Zhang C, Zhang FH, Zhang JW, Zhang QM, Zhang SH, Zhang YC, Zhang YH, Zhang YX, Zhang ZJ, Zhang ZP, Zhang ZY, Zhao J, Zhao QW, Zhao YB, Zheng L, Zhong WL, Zhou L, Zhou ZY, Zhuang HL, Zou JH
Journal nameChinese Physics C
Year2013
Month1
Day1
Volume Number37
Issue Number1
PublisherIOP Publishing
ISSN1674-1137
LanguagesEnglish-United Kingdom
KeywordsDaya Bay; neutrino mixing; neutrino oscillation; reactor
Web of Science Subject CategoriesPhysics; Physics, Nuclear; PHYSICS, NUCLEAR; Physics, Particles & Fields; PHYSICS, PARTICLES & FIELDS

Last updated on 2020-20-11 at 00:49