arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1101.3191hep-ph
收藏

低能ν_{e}散射过程中的非标准相互作用和干涉效应

Nonstandard interactions and interference effect in low energy ν_{e}e-scattering process

Amir Nawaz Khan, Farida Tahir

摘要:

计算了非标准中微子相互作用(NSI)存在下弹性ν_{e}散射过程中干涉(I)的大小和符号。由标准模型(SM)预测的干扰大小为-1.09,而在LSND实验中测量的干扰大小为-1.01 \pm 0.18。利用目前文献中关于NSI的界,我们得到I=-1.02,这与实验是一致的。结果表明,非标准电流对SM的电荷电流和中性电流(CC和NC)有建设性的干扰,而总的-ev符号(破坏性的)表明主要贡献仍然来自SM,但我们不能忽视NSI的贡献,因为它增强了我们对已知物理现象的认识。作为该分析的一个分支,可以选择NSI耦合参数的最佳界限。

英文摘要:

We calculated the size and sign of interference (I) in elastic ν_{e}e-scattering process in the presence of nonstandard neutrino interactions (NSI). The size of interference predicted by standard model (SM) is -1.09, while that measured in the LSND experiment is -1.01\pm0.18. Using the current bounds on NSI from the literature,we get I= -1.02, which is compatible with experiment . The result indicates that nonstandard current interferes constructively with the charge and neutral currents (CC and NC) of the SM, while the over all -ev sign (distructive) indicates that the dominant contribution is still from the SM, yet we can not ignore the contribution of NSI, as it enhances our knowledge in terms of known physical phenomena. As an offshoot of this analysis, the best bounds on NSI coupling parameters could be chosen.

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。

↑