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Estimate of the Collins function in a chiral invariant approach

A. Bacchetta·R. Kundu·A. Metz·P. J. Mulders
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Abstract

We estimate the Collins function at a low energy scale by calculating the fragmentation of a quark into a pion at the one-loop level in the chiral invariant model of Manohar and Georgi. We give a useful parametrization of our results and we briefly discuss different spin and/or azimuthal asymmetries containing the Collins function and measurable in semi-inclusive DIS and e+ e- annihilation

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A. Bacchetta, R. Kundu, A. Metz, P. J. Mulders. 2002-06-28. Estimate of the Collins function in a chiral invariant approach. https://arxiv.org/abs/hep-ph/0206309

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