arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1906.05656nucl-thhep-ph
收藏

准弹性(反)中微子散射中τ的极化:谱函数的作用

Polarization of tau in quasielastic (anti)neutrino scattering: the role of spectral functions

J. E. Sobczyk, N. Rocco, J. Nieves

摘要:

本文研究了中微子-核荷电准弹性(反)散射中的$τ$极化。谱函数形式主义被用来计算微分截面和偏振分量的几个运动学设置,相关的中微子振荡实验。核修正在这些观测量的影响进行了研究,通过比较使用两种不同的现实的光谱功能,从相对论性的全球费米气体模型,其中只有统计相关性占推导出的结果。我们表明,光谱功能,虽然他们发挥了重要的作用时,预测的微分截面,产生少得多的可见效果的偏振分量的外出$τ$。

英文摘要:

We present a study of the $τ$ polarization in charged-current quasielastic (anti)neutrino-nucleus scattering. The spectral function formalism is used to compute the differential cross section and the polarization components for several kinematical setups, relevant for neutrino-oscillation experiments. The effects of the nuclear corrections in these observables are investigated by comparing the results obtained using two different realistic spectral functions, with those deduced from the relativistic global Fermi gas model, where only statistical correlations are accounted for. We show that the spectral functions, although they play an important role when predicting the differential cross sections, produce much less visible effects on the polarization components of the outgoing $τ$.

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。

↑