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Twist-3 T-odd fragmentation functions G^perp and tilde{G}^perp in a spectator model
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Twist-3 T-odd fragmentation functions G^perp and tilde{G}^perp in a spectator model
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We present a calculation of the twist-3 T-odd chiral-even fragmentation functions $G^{\perp}$ and $\tilde{G}^{\perp}$ using a spectator model. We consider the effect gluon exchange to calculate all necessary one-loop diagrams for the quark-quark and quark-gluon-quark correlation functions. We find that the gluon loops corrections generate non-zero contribution to these two fragmentation function. We numerically calculate their half-$k_T$ moments by integrating over the transverse momentum and also verify the equation of motion relation among $G^{\perp}$, $\tilde{G}^{\perp}$ and the Collins function.
Forward citations
Cited by 1 Pith paper
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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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