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arXiv · hep-ph/0509058

Soft Rescattering in DIS: Effects of Helicity Flip

Paul Hoyer·Matti Jarvinen
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Abstract

Soft rescattering in hard QCD processes may involve non-perturbative, chiral symmetry breaking interactions. We find that rescattering which changes the helicity of the struck quark gives rise to a leading twist single spin asymmetry in semi-inclusive DIS, the angular dependence of which is the same as that usually ascribed to the Collins effect. We argue that helicity-changing rescattering can contribute also to $k_\perp$-integrated parton distributions.

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Paul Hoyer, Matti Jarvinen. 2005-10-26. Soft Rescattering in DIS: Effects of Helicity Flip. https://doi.org/10.1088/1126-6708%2F2005%2F10%2F080

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