Evidence for neutrino oscillations from the observation of (ν)over-barc appearance in a (ν)over-barμ beam -: art. no. 112007
Evidence for neutrino oscillations from the observation of (ν)over-barc appearance in a (ν)over-barμ beam -: art. no. 112007
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DOI：
10.1103/physrevd.64.112007
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发表时间：
2001-12-01
影响因子：
5
通讯作者：
Yellin, S
中科院分区：
文献类型：
--
作者：
Aguilar, A;Auerbach, LB;Yellin, S
洛斯阿拉莫斯中子科学中心的液体闪烁体中微子探测器利用静止时mu（+）衰变的（mu）对（mu）->（e）振荡进行了研究。在预期背景之上观察到与（e）p-->e（+）n散射一致的总共过量87.9+/-22.4+/-6.0个事件。该过量对应于（0.264+/-0.067+/-0.045）%的振荡概率，这与先前的分析一致。结合其他已知的中微子振荡极限，LSND数据表明中微子振荡发生在0.2-10 eV（2）/c（4）Δ m（2）范围内，表明中微子质量大于0.4 eV/c（2）。
A search for (mu) -->(e) oscillations was conducted by the Liquid Scintillator Neutrino Detector at the Los Alamos Neutron Science Center using (mu) from mu (+) decay at rest. A total excess of 87.9+/-22.4+/-6.0 events consistent with (e)p-->e(+) n scattering was observed above the expected background. This excess corresponds to an oscillation probability of (0.264+/-0.067+/-0.045)%, which is consistent with an earlier analysis. In conjunction with other known limits on neutrino oscillations, the LSND data suggest that neutrino oscillations occur in the 0.2-10 eV(2)/c(4) Deltam(2) range, indicating a neutrino mass greater than 0.4 eV/c(2).