Search for a Light Sterile Neutrino at Daya Bay

作者：An F P^*; Balantekin A B; Band H R; Beriguete W; Bishai M; Blyth S; Butorov I; Cao G F; Cao J; Chan Y L; Chang J F; Chang L C; Chang Y; Chasman C; Chen H; Chen Q Y; Chen S M; Chen X; Chen X; Chen Y X; Chen Y; Cheng Y P; Cherwinka J J; Chu M C; Cummings J P; de Arcos J; Deng Z Y; Ding Y Y; Diwan M V; Draeger E; Du X F; Dwyer D A; Edwards W R; Ely S R; Fu J Y; Ge L Q; Gill R; Gonchar M; Gong G H

来源：Physical Review Letters, 2014, 113(14): 141802.

DOI：10.1103/PhysRevLett.113.141802

A search for light sterile neutrino mixing was performed with the first 217 days of data from the Daya Bay Reactor Antineutrino Experiment. The experiment's unique configuration of multiple baselines from six 2.9 GW(th) nuclear reactors to six antineutrino detectors deployed in two near (effective baselines 512 m and 561 m) and one far (1579 m) underground experimental halls makes it possible to test for oscillations to a fourth (sterile) neutrino in the 10(-3) eV(2) < vertical bar Delta m(41)(2)vertical bar < 0.3 eV(2) range. The relative spectral distortion due to the disappearance of electron antineutrinos was found to be consistent with that of the three-flavor oscillation model. The derived limits on sin(2) 2 theta(14) cover the 10(-3) eV(2) less than or similar to vertical bar Delta m(41)(2)vertical bar less than or similar to 0.1 eV(2) region, which was largely unexplored.

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  华北电力大学（保定）; 中国人民解放军国防科学技术大学; 西安交通大学; 东莞理工学院; 东华大学; 南京大学; 北京师范大学; 清华大学; 香港中文大学; 中国原子能科学研究院; shenzhen univ; new; 香港大学; 成都理工大学; 南开大学; 山东大学; 中山大学; 上海交通大学