Quark Wigner Distributions and Orbital Angular Momentum in Light-front Dressed Quark Model

Abstract

We calculate the Wigner functions for a quark target dressed with a gluon. These give a combined position and momentum space information of the quark distributions and are related to both generalized parton distributions (GPDs) and transverse momentum dependent parton distributions (TMDs). We calculate and compare the different definitions of quark orbital angular momentum in this model. We compare our results with other model calculations.

arXiv commentVersion to appear in Phys. Rev. D

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• Wigner Distributions for Gluons in Light-front Dressed Quark Model
• The light-front gauge-invariant energy-momentum tensor
• Proper definition and evolution of generalized transverse momentum distributions
• Classical and quantum entropy of parton distributions
• The Parton Orbital Angular Momentum: Status and Prospects
• Wigner distributions and orbital angular momentum of a proton
• Modelling the nucleon structure
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• Multipole decomposition of the nucleon transverse phase space
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• Wigner Distributions For Gluons
• Quark-gluon double parton distributions in the light-front dressed quark model
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• Use of the Husimi distribution for nucleon tomography
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• Three Dimensional Imaging of the Nucleon
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• Probing information theoretic measures of nonlinear ultracold quantum gases using phase-space distributions
• Wigner Distributions and Orbital Angular Momentum of Quarks and Gluons