Transverse polarization of hyperons produced in semi-inclusive deep inelastic scattering

We study the transverse polarization of hyperons produced in semi-inclusive deep inelastic scattering, ep -> e Lambda X-up arrow, in the framework of the collinear twist-3 factorization. The cross section from the twist-3 distribution functions and the twist-3 quark fragmentation functions is computed in the leading order with respect to the QCD coupling constant. The constraint relations among the twist-3 FFs are taken into account to simplify the formula. The formula is relevant to large-P-T hyperon production in the future Electron Ion Collider experiment.

Automated summary

In this study, we investigate the transverse polarization of hyperons produced in semi-inclusive deep inelastic scattering, ep -> e Lambda X-up arrow, using the framework of collinear twist-3 factorization. The cross section of the process is computed in the leading order with respect to the QCD coupling constant, considering the twist-3 distribution functions and quark fragmentation functions. The constraint relations among the twist-3 fragmentation functions are taken into account to simplify the formula. This study is highly relevant to the future Electron Ion Collider experiment regarding large transverse momentum hyperon production.