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arXiv · 1808.00140

Quark Wigner distribution of the pion meson in light-cone quark model

Zhi-Lei Ma·Zhun Lu
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Abstract

We study the quark Wigner distributions of the pion meson which are the phase-space distributions containing the most general one-parton information.Using the pion wavefunctions deduced from a light-cone quark model, we calculate the Wigner distributions of the unpolarized, longitudinally polarized and transversely polarized quarks inside the pion meson via the Fock-state overlap representation, respectively.We present the numerical results of the transverse Wigner distributions in which the longitudinal momentum fraction is integrated out. The mixed Wigner distributions as functions of $b_y$ and $k_x$ are also presented.As a intermediate step, we provide the analytic results for the generalized transverse momentum dependent distributions of the pion meson in the same model.

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Zhi-Lei Ma, Zhun Lu. 2018-08-01. Quark Wigner distribution of the pion meson in light-cone quark model. https://doi.org/10.1103/physrevd.98.054024

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