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Collins fragmentation function from gluon rescattering
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We estimate the Collins fragmentation function by introducing the effect of gluon rescattering in a model calculation of the fragmentation process. We include all necessary diagrams to the one-loop level and compute the nontrivial phases giving rise to the Collins function. We compare our results to the ones obtained from pion rescattering. We conclude that three out of four one-loop diagrams give sizeable contributions to the Collins function, and that the effect of gluon rescattering has a magnitude comparable to that of pion rescattering, but has opposite sign.
Forward citations
Cited by 2 Pith papers
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T-odd transverse momentum dependent gluon distributions for tensor polarized deuteron in a spectator model
Six leading-twist T-odd gluon TMDs of a tensor-polarized deuteron are derived analytically and evaluated numerically in a spectator model with single-gluon final-state interaction.
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