Quark Wigner distributions and spin-spin correlations
Abstract
We investigate the Wigner distributions for and quarks in a light-front quark-diquark model of a proton to unravel the spatial and spin structure. The light-front wave functions are modeled from the soft-wall AdS/QCD prediction. We consider the contributions from both the scalar and the axial vector diquarks. The Wigner distributions for unpolarized, longitudinally polarized, and transversely polarized protons are presented in the transverse momentum plane as well as in the transverse impact parameter plane. The Wigner distributions satisfy a Soffer-bound-type inequality. We also evaluate all the leading twist GTMDs and show their scale evolution. The spin-spin correlations between the quark and the proton are investigated
Cite
@article{arxiv.1701.08551,
title = {Quark Wigner distributions and spin-spin correlations},
author = {D. Chakrabarti and T. Maji and C. Mondal and A. Mukherjee},
journal= {arXiv preprint arXiv:1701.08551},
year = {2017}
}
Comments
35 pages, 16 figures. arXiv admin note: text overlap with arXiv:1601.03217