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Next-to-Leading Order Weighted Sivers Asymmetry in Semi-Inclusive Deep Inelastic Scattering: Three-Gluon Correlator
Proceedings of QCD Evolution 2015 — PoS(QCDEV2015)
We study the Sivers asymmetry in semi-inclusive deep inelastic scattering: the three-gluon correlation function contribution. At the cross section level, we establish the matching between the twist-3 collinear factorization approach and the transverse momentum dependent factorization formalism at the moderate transverse momentum region. The so-called coefficient functions when one expands the quark Sivers function in terms of three-gluon correlation functions are derived, which are essentialdoi:10.22323/1.249.0050 fatcat:a7ojsd7c7vfnfngyv2wt74s54a