论文标题
质子的质子和布尔 - 毛牛肉在轻夸克 - diquark型号中
Sivers and Boer-Mulders TMDs of proton in a light-front quark-diquark model
论文作者
论文摘要
我们获得了质子的领先扭曲t-odd Quark横向动量依赖于Parton分布函数（TMD），即Sivers功能，$ f_ {1t}^{\ perp Q}（x，x，p_ \ perp^2）$，以及boer-mulders and boer-mulders and boer-mulders函数用软壁ADS/QCD预测的波函数构建的Quark-Diquark模型。 GLUON拆卸对于预测非零T-ODD TMD至关重要。我们研究了非扰动$ su（3）$ gluon撤销内核的实用性，远远超出了扰动$ u（1）$ gluons的通常近似。发现与这些T-ODD TMD相关的半包含深度非弹性散射（SIDIS）中的自旋不对称与爱马仕和指南针数据一致。我们还评估了广义的Sivers和Boer-Mulders的变化，并将它们与可用的晶格QCD模拟进行了比较。
We obtain the leading twist T-odd quark transverse momentum dependent parton distribution functions (TMDs) of the proton, namely the Sivers function, $f_{1T}^{\perp q}(x,p_\perp^2)$, and the Boer-Mulders function, $h_1^{\perp q}(x,p_\perp^2)$, in a light-front quark-diquark model constructed with the wave functions predicted by the soft-wall AdS/QCD. The gluon rescattering is crucial to predict a nonzero T-odd TMDs. We study the utility of a nonperturbative $SU(3)$ gluon rescattering kernel going beyond the usual approximation of perturbative $U(1)$ gluons. The spin asymmetries in semi-inclusive deep inelastic scattering (SIDIS) associated with these T-odd TMDs are found to be consistent with HERMES and COMPASS data. We also evaluate the generalized Sivers and Boer-Mulders shifts and compare them with the available lattice QCD simulations.
