Kotzinian-Mulders effect in semi-inclusive DIS within TMD factorization *
Open Access
- 1 February 2022
- journal article
- research article
- Published by IOP Publishing in Chinese Physics C
- Vol. 46 (2), 023102
- https://doi.org/10.1088/1674-1137/ac3124
Abstract
In this study, we investigate the Kotzinian-Mulders effect under 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 experiments. We observe that the obtained x(B)(-), z(h)(-), and P-h perpendicular to-dependent Kotzinian-Mulders effects are basically consistent with the HERMES and COMPASS measurements. We also make predictions at EIC and EicC kinematics.Keywords
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