国生反应堆中微子实验室的中微子-电子散射研究
Studies of Neutrino-Electron Scattering at the Kuo-Sheng Reactor Neutrino Laboratory
摘要:
在台湾国胜核电厂使用200公斤CsI(Tl)闪烁晶体探测器阵列进行了电子反中微子-电子弹性散射的研究。实验测得的R(exp)= [1.00 +- 0.32(stat)]xR(SM)的截面与标准模型的预期一致,相应的弱混合角为sin ~ 2 T = 0.24 +- 0.05(stat)。结果与中性电流和带电电流之间的相消干涉效应一致。在90%置信水平下,中微子磁矩的极限值为μ(nu_(e))< 2.0 × 10^(-10)μ_(B),电子反中微子电荷半径的极限值为r^(2)<(0.12 +-2.07)× 10 ^(-32)cm ^2。
英文摘要:
Studies on electron antineutrino-electron elastic scattering were performed using a 200-kg CsI(Tl) scintillating crystal detector array at the Kuo-Sheng Nuclear Power Plant in Taiwan. The measured cross section of R(exp) = [1.00 +- 0.32(stat)]xR(SM) is consistent with the Standard Model expectation and the corresponding weak mixing angle derived is sin2T = 0.24 +- 0.05 (stat). The results are consistent with a destructive interference effect between neutral and charged-currents in this process. Limits on neutrino magnetic moment of mu(nu_(e)) < 2.0 x 10^(-10) mu_(B) at 90% confidence level and on electron antineutrino charge radius of r^(2) < (0.12 +- 2.07)x10^(-32) cm^2 were also derived.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。