PT Journal
AU Noguera, S
   Scopetta, S
TI Pion transverse momentum dependent parton distributions in the Nambu and Jona-Lasinio model
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2015
BP 102
EP 18pp
VL 11
IS 11
DI 10.1007/JHEP11(2015)102
LA English
DE Deep Inelastic Scattering; Phenomenological Models; Chiral Lagrangians
AB 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.
ER