Twist-3 contributions in semi-inclusive DIS with transversely polarized target
- Chen, A.P.
- Ma, J.P.
- Zhang, G.P.
Publication date
March 2016
DOI Publisher
The Authors. Published by Elsevier B.V.Abstract
AbstractWe study semi-inclusive DIS with a transversely polarized target in the approach of collinear factorization. The effects related to the transverse polarization are at twist-3. We derive the complete result of twist-3 contributions to the relevant hadronic tensor at leading order of αs, and construct correspondingly experimental observables. Measuring these observables will help to extract the twist-2 transversity distribution, twist-3 distributions and twist-3 fragmentation functions of the produced unpolarized hadron. A detailed comparison with the approach of transverse-momentum-dependent factorization is made
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