TY  - JOUR
AU  - Courtoy, A.
AU  - Noguera, S.
AU  - Scopetta, S.
PY  - 2019
DA  - 2019//
TI  - Double parton distributions in the pion in the Nambu-Jona-Lasinio model
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 045
EP  - 26pp
VL  - 12
IS  - 12
PB  - Springer
KW  - Deep Inelastic Scattering (Phenomenology)
KW  - Phenomenological Models
AB  - Two-parton correlations in the pion, a non perturbative information encoded in double parton distribution functions, are investigated in the Nambu-Jona-Lasinio model. It is found that double parton distribution functions expose novel dynamical information on the structure of the pion, not accessible through one-body parton distributions, as it happens in several estimates for the proton target and in a previous evaluation for the pion, in a light-cone framework. Expressions and predictions are given for double parton distributions corresponding to leading-twist Dirac operators in the quark vertices, and to different regularization methods for the Nambu-Jona-Lasinio model. These results are particularly relevant in view of forthcoming lattice data.
SN  - 1029-8479
UR  - https://arxiv.org/abs/1909.09530
UR  - https://doi.org/10.1007/JHEP12(2019)045
DO  - 10.1007/JHEP12(2019)045
LA  - English
N1  - WOS:000521231400001
ID  - Courtoy_etal2019
ER  -