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arXiv · 1202.0700

T-odd quark-gluon-quark correlation function in the diquark model

Zhun Lu·Ivan Schmidt
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Abstract

We study the transverse momentum dependent quark-gluon-quark correlation function. Using a spectator diquark model, we calculate the eight time-reversal-odd interaction-dependent twist-3 quark distributions appearing in the decomposition of the transverse momentum dependent quark-gluon-quark correlator. In order to obtain finite results, we assume a dipole form factor for the nucleon-quark-diquark coupling, instead of a point-like coupling. The results are compared with the time-reversal-odd interaction-independent twist-3 TMDs calculated in the same model.

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Zhun Lu, Ivan Schmidt. 2012-09-02. T-odd quark-gluon-quark correlation function in the diquark model. https://doi.org/10.1016/j.physletb.2012.05.023

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