Transverse momentum dependent parton distributions in a light-cone quark model

Abstract

The leading twist transverse momentum dependent parton distributions (TMDs) are studied in a light-cone description of the nucleon where the Fock expansion is truncated to consider only valence quarks. General analytic expressions are derived in terms of the six amplitudes needed to describe the three-quark sector of the nucleon light-cone wave function. Numerical calculations for the T-even TMDs are presented in a light-cone constituent quark model, and the role of the so-called pretzelosity is investigated to produce a nonspherical shape of the nucleon.

references added and typos corrected; version to appear in Phys. Rev. D

References in corpus (13)

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• Predictions for double spin asymmetry A_{LT} in Semi Inclusive DIS
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• Are there approximate relations among transverse momentum dependent distribution functions?
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• Densities, Parton Distributions, and Measuring the Non-Spherical Shape of the Nucleon

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