论文标题
$ν_τ$的两极分化$τ$ leptons和$ \barν_τ$从核子中散射
Quasielastic production of polarized $τ$ leptons in $ν_τ$ and $\barν_τ$ scattering from nucleons
论文作者
论文摘要
已经研究了在电流诱导的Quasielastic $ ν_τ〜（\barν_τ）中产生的$τ$ lept子的横截面和极化成分 - n $散射。已经研究了由于使用不同的矢量形式因素和轴向载体形式中的轴向偶极质量而产生的理论不确定性。由于$τ$ Lepton的质量很高，因此包含伪cal的术语和二等当前形式因素的贡献是不可忽略的，并且有助于横截面中的不确定性和极化，因为这些形式尚不清楚。鉴于Dune，Ship和DSTAU合作进行了目前提出的实验，以研究$τ$ Lepton的生产，因此已经完成了对跨部分的更新计算以及在准层生产的情况下，对Tau Leptons的极化进行了更新，并且已经介绍了数值结果，并讨论了理论上的不确定性。
The cross sections and polarization components of the $τ$ leptons produced in the charged current induced quasielastic $ν_τ~(\barν_τ) - N$ scattering have been studied. The theoretical uncertainties arising due to the use of different vector form factors and the axial dipole mass in the axial vector form factor have been investigated. Due to the high mass of $τ$ lepton, the contributions from the term containing pseudoscalar and second class current form factors are non-negligible and contribute to the uncertainty in the cross section and polarization observables as these form factors are not well known. In view of the currently proposed experiments by DUNE, SHiP and DsTau collaborations to study the production of $τ$ lepton, an updated calculation of the cross sections and polarizations of tau leptons in the case of quasielastic production have been done and the numerical results have been presented along with a discussion of the theoretical uncertainties.
