Double parton distributions in the pion in the Nambu–Jona-Lasinio model

Abstract 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 a...

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Main Authors: Aurore Courtoy, Santiago Noguera, Sergio Scopetta
Format: Article
Language:English
Published: SpringerOpen 2019-12-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP12(2019)045
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author Aurore Courtoy
Santiago Noguera
Sergio Scopetta
author_facet Aurore Courtoy
Santiago Noguera
Sergio Scopetta
author_sort Aurore Courtoy
collection DOAJ
description Abstract 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.
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spelling doaj.art-adad989f4b8743f8a89da59592a4ca302022-12-21T23:22:54ZengSpringerOpenJournal of High Energy Physics1029-84792019-12-0120191212610.1007/JHEP12(2019)045Double parton distributions in the pion in the Nambu–Jona-Lasinio modelAurore Courtoy0Santiago Noguera1Sergio Scopetta2Instituto de Física, Universidad Nacional Autónoma de MéxicoDepartamento de Física Teòrica and IFIC, Centro Mixto Universidad de Valencia-CSICDipartimento di Fisica e Geologia, Università degli Studi di Perugia, and Istituto Nazionale di Fisica Nucleare, Sezione di PerugiaAbstract 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.https://doi.org/10.1007/JHEP12(2019)045Deep Inelastic Scattering (Phenomenology)Phenomenological Models
spellingShingle Aurore Courtoy
Santiago Noguera
Sergio Scopetta
Double parton distributions in the pion in the Nambu–Jona-Lasinio model
Journal of High Energy Physics
Deep Inelastic Scattering (Phenomenology)
Phenomenological Models
title Double parton distributions in the pion in the Nambu–Jona-Lasinio model
title_full Double parton distributions in the pion in the Nambu–Jona-Lasinio model
title_fullStr Double parton distributions in the pion in the Nambu–Jona-Lasinio model
title_full_unstemmed Double parton distributions in the pion in the Nambu–Jona-Lasinio model
title_short Double parton distributions in the pion in the Nambu–Jona-Lasinio model
title_sort double parton distributions in the pion in the nambu jona lasinio model
topic Deep Inelastic Scattering (Phenomenology)
Phenomenological Models
url https://doi.org/10.1007/JHEP12(2019)045
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