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arXiv · 1508.01061

Pion transverse momentum dependent parton distributions in the Nambu and Jona-Lasinio model

Santiago Noguera·Sergio Scopetta
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Abstract

An explicit evaluation of the two pion transverse momentum dependent parton distributions at leading twist is presented, in the framework of the Nambu-Jona Lasinio model with Pauli-Villars regularization. The transverse momentum dependence of the obtained distributions is generated solely by the dynamics of the model. Using these results, the so called generalized Boer-Mulders shift is studied and compared with recent lattice data. The obtained agreement is very encouraging, in particular because no additional parameter has been introduced. A more conclusive comparison would require a precise knowledge of the QCD evolution of the transverse momentum dependent parton distributions under scrutiny.

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Santiago Noguera, Sergio Scopetta. 2015-08-05. Pion transverse momentum dependent parton distributions in the Nambu and Jona-Lasinio model. https://doi.org/10.1007/jhep11(2015)102

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