来自MINOS、MINOS+、大亚湾和布热伊-3实验中消失搜索对惰性中微子混合的改进限制

Improved Constraints on Sterile Neutrino Mixing from Disappearance Searches in the MINOS, MINOS+, Daya Bay, and Bugey-3 Experiments.

作者信息

Adamson P, An F P, Anghel I, Aurisano A, Balantekin A B, Band H R, Barr G, Bishai M, Blake A, Blyth S, Cao G F, Cao J, Cao S V, Carroll T J, Castromonte C M, Chang J F, Chang Y, Chen H S, Chen R, Chen S M, Chen Y, Chen Y X, Cheng J, Cheng Z K, Cherwinka J J, Childress S, Chu M C, Chukanov A, Coelho J A B, Cummings J P, Dash N, De Rijck S, Deng F S, Ding Y Y, Diwan M V, Dohnal T, Dolzhikov D, Dove J, Dvořák M, Dwyer D A, Evans J J, Feldman G J, Flanagan W, Gabrielyan M, Gallo J P, Germani S, Gomes R A, Gonchar M, Gong G H, Gong H, Gouffon P, Graf N, Grzelak K, Gu W Q, Guo J Y, Guo L, Guo X H, Guo Y H, Guo Z, Habig A, Hackenburg R W, Hahn S R, Hans S, Hartnell J, Hatcher R, He M, Heeger K M, Heng Y K, Higuera A, Holin A, Hor Y K, Hsiung Y B, Hu B Z, Hu J R, Hu T, Hu Z J, Huang H X, Huang J, Huang X T, Huang Y B, Huber P, Jaffe D E, Jen K L, Ji X L, Ji X P, Johnson R A, Jones D, Kang L, Kettell S H, Koerner L W, Kohn S, Kordosky M, Kramer M, Kreymer A, Lang K, Langford T J, Lee J, Lee J H C, Lei R T, Leitner R, Leung J K C, Li F, Li H L, Li J J, Li Q J, Li S, Li S C, Li S J, Li W D, Li X N, Li X Q, Li Y F, Li Z B, Liang H, Lin C J, Lin G L, Lin S, Ling J J, Link J M, Littenberg L, Littlejohn B R, Liu J C, Liu J L, Liu Y, Liu Y H, Lu C, Lu H Q, Lu J S, Lucas P, Luk K B, Ma X B, Ma X Y, Ma Y Q, Mann W A, Marshak M L, Marshall C, Martinez Caicedo D A, Mayer N, McDonald K T, McKeown R D, Mehdiyev R, Meier J R, Meng Y, Miller W H, Mills G, Mora Lepin L, Naples D, Napolitano J, Naumov D, Naumova E, Nelson J K, Nichol R J, O'Connor J, Ochoa-Ricoux J P, Olshevskiy A, Pahlka R B, Pan H-R, Park J, Patton S, Pavlović Ž, Pawloski G, Peng J C, Perch A, Pfützner M M, Phan D D, Plunkett R K, Poonthottathil N, Pun C S J, Qi F Z, Qi M, Qian X, Qiu X, Radovic A, Raper N, Ren J, Reveco C Morales, Rosero R, Roskovec B, Ruan X C, Sail P, Sanchez M C, Schneps J, Schreckenberger A, Shaheed N, Sharma R, Sousa A, Steiner H, Sun J L, Tagg N, Thomas J, Thomson M A, Timmons A, Tmej T, Todd J, Tognini S C, Toner R, Torretta D, Treskov K, Tse W-H, Tull C E, Vahle P, Viren B, Vorobel V, Wang C H, Wang J, Wang M, Wang N Y, Wang R G, Wang W, Wang W, Wang X, Wang Y, Wang Y F, Wang Z, Wang Z, Wang Z M, Weber A, Wei H Y, Wei L H, Wen L J, Whisnant K, White C, Whitehead L H, Wojcicki S G, Wong H L H, Wong S C F, Worcester E, Wu D R, Wu F L, Wu Q, Wu W J, Xia D M, Xie Z Q, Xing Z Z, Xu J L, Xu T, Xue T, Yang C G, Yang L, Yang Y Z, Yao H F, Ye M, Yeh M, Young B L, Yu H Z, Yu Z Y, Yue B B, Zeng S, Zeng Y, Zhan L, Zhang C, Zhang F Y, Zhang H H, Zhang J W, Zhang Q M, Zhang X T, Zhang Y M, Zhang Y X, Zhang Y Y, Zhang Z J, Zhang Z P, Zhang Z Y, Zhao J, Zhou L, Zhuang H L

机构信息

Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.

Institute of Modern Physics, East China University of Science and Technology, Shanghai.

出版信息

Phys Rev Lett. 2020 Aug 14;125(7):071801. doi: 10.1103/PhysRevLett.125.071801.

DOI:10.1103/PhysRevLett.125.071801

PMID:32857527

Abstract

Searches for electron antineutrino, muon neutrino, and muon antineutrino disappearance driven by sterile neutrino mixing have been carried out by the Daya Bay and MINOS+ collaborations. This Letter presents the combined results of these searches, along with exclusion results from the Bugey-3 reactor experiment, framed in a minimally extended four-neutrino scenario. Significantly improved constraints on the θ_{μe} mixing angle are derived that constitute the most constraining limits to date over five orders of magnitude in the mass-squared splitting Δm_{41}^{2}, excluding the 90% C.L. sterile-neutrino parameter space allowed by the LSND and MiniBooNE observations at 90% CL_{s} for Δm_{41}^{2}<13 eV^{2}. Furthermore, the LSND and MiniBooNE 99% C.L. allowed regions are excluded at 99% CL_{s} for Δm_{41}^{2}<1.6 eV^{2}.

摘要

大亚湾和MINOS+合作组开展了由惰性中微子混合驱动的电子反中微子、μ子中微子和μ子反中微子消失的搜索。本信函展示了这些搜索的综合结果，以及布热伊3号反应堆实验的排除结果，这些结果置于一个最小扩展的四中微子模型框架内。得出了对θ_{μe}混合角的显著改进的限制，这在质量平方差Δm_{41}^{2}的五个数量级上构成了迄今为止最严格的限制，在90%置信水平下排除了LSND和MiniBooNE观测所允许的90%置信水平的惰性中微子参数空间，对于Δm_{41}^{2}<13 eV^{2}。此外，对于Δm_{41}^{2}<1.6 eV^{2}，在99%置信水平下排除了LSND和MiniBooNE 99%置信水平允许的区域。