Transversity studies with protons and light nuclei
Abstract
A general formalism to evaluate time-reversal odd transverse momentum dependent parton distributions (T-odd TMDS) is reviewed and applied to the calculation of the leading-twist quantities, i.e., the Sivers and the Boer-Mulders functions. Two different models of the proton structure, namely a non relativistic constituent quark model and the MIT bag model, have been used. The results obtained in both frameworks fulfill the Burkardt sum rule to a large extent. The calculation of nuclear effects in the extraction of neutron single spin asymmetries in semi-inclusive deep inelastic scattering off transversely polarized He is also illustrated. It is found that the nuclear effects described by an Impulse Approximation approach are under theoretical control.
Keywords
Cite
@article{arxiv.1109.6472,
title = {Transversity studies with protons and light nuclei},
author = {Sergio Scopetta},
journal= {arXiv preprint arXiv:1109.6472},
year = {2015}
}
Comments
11 pages, 6 figures, invited talk at the "XIII Conference on Problems in Theoretical Nuclear Physics in Italy", Cortona, Italy, 6-8 April 2011. To be published in Journal of Physics: Conference Series