Regular Article - Theoretical Physics
Helicity-dependent generalized parton distributions for nonzero skewness
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
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Accepted: 4 September 2017
Published online: 22 September 2017
We investigate the helicity-dependent generalized parton distributions (GPDs) in momentum as well as transverse position (impact) spaces for the u and d quarks in a proton when the momentum transfer in both the transverse and the longitudinal directions are nonzero. The GPDs are evaluated using the light-front wave functions of a quark–diquark model for nucleon where the wave functions are constructed by the soft-wall AdS/QCD correspondence. We also express the GPDs in the boost-invariant longitudinal position space.
© The Author(s), 2017