论文标题
kotzinian-mulders在TMD分解中的半包含dis中效应
Kotzinian-Mulders effect in semi-inclusive DIS within TMD factorization
论文作者
论文摘要
在本文中，我们研究了横向动量依赖性（TMD）分解框架内半包含强弹性散射（SIDIS）中单个强子产生的kotzinian-mulders效应。不对称性是由kotzinian-mulders函数的卷积$ g_ {1t} $和非偏振片段函数$ d_1 $贡献的。作为TMD分布，可在扰动区域中的坐标空间中的kotzinian-mulders函数可以表示为$ c $ - 系数的卷积和相应的截线相关函数。 Wandzura-Wilczek近似用于获得此相关函数。我们对HERMES和指南针测量的运动学分解中的SIDIS过程中的Kotzinian-Mulders效应进行了详细的现象学数值分析。发现获得的$ x_b $ - ，$ z_h $ - 和$ p_ {h \ perp} $ - 依赖的kotzinian-mulders效应基本上与爱马仕和指南针的测量基本一致。
In this paper we study the Kotzinian-Mulders effect of a single hadron production in semi-inclusive deep inelastic scattering (SIDIS) within the framework of transverse momentum dependent (TMD) factorization. The asymmetry is contributed by the convolution of the Kotzinian-Mulders function $g_{1T}$ and the unpolarized fragmentation function $D_1$. As a TMD distribution, the Kotzinian-Mulders function in the coordinate space in the perturbative region can be represented as the convolution of the $C$-coefficients and the corresponding collinear correlation function. The Wandzura-Wilczek approximation is used to obtain this correlation function. We perform a detailed phenomenological numerical analysis of the Kotzinian-Mulders effect in the SIDIS process within TMD factorization at the kinematics of the HERMES and COMPASS measurements. It is found that the obtained $x_B$-, $z_h$- and $P_{h\perp}$-dependent Kotzinian-Mulders effect are basically consistent with the HERMES and COMPASS measurements.
