• Open Access

Pion generalized parton distributions: A path toward phenomenology

José Manuel Morgado Chávez, Valerio Bertone, Feliciano De Soto Borrero, Maxime Defurne, Cédric Mezrag, Hervé Moutarde, José Rodríguez-Quintero, and Jorge Segovia
Phys. Rev. D 105, 094012 – Published 17 May 2022

Abstract

We introduce a new family of generalized parton distribution models able to fulfill by construction all the theoretical properties imposed by QCD. These models are built on standard parton distribution functions and extended to off-forward kinematics through a well-defined procedure. We apply this strategy on the pion, first handling a simple but insightful algebraic model, and then exploiting state-of-the-art computations obtained in continuum QCD. We compare these models with a more standard one relying on an xFitter extraction of the pion parton distribution functions. The results for both quark and gluon generalized parton distributions are presented and exploited for calculation of electromagnetic, gravitational, and Compton form factors. Results on the latter highlight the relevance of next-to-leading-order corrections, even in the so-called valence region.

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  • Received 29 October 2021
  • Accepted 18 January 2022

DOI:https://doi.org/10.1103/PhysRevD.105.094012

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Nuclear PhysicsParticles & Fields

Authors & Affiliations

José Manuel Morgado Chávez1,*, Valerio Bertone2,†, Feliciano De Soto Borrero3,‡, Maxime Defurne2,§, Cédric Mezrag2,∥, Hervé Moutarde2,¶, José Rodríguez-Quintero1,**, and Jorge Segovia3,††

  • 1Department of Integrated Sciences and Center for Advanced Studies in Physics, Mathematics and Computation, University of Huelva, E-21071 Huelva, Spain
  • 2Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
  • 3Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, E-41013 Sevilla, Spain

  • *josemanuel.morgado@dci.uhu.es
  • valerio.bertone@cea.fr
  • fcsotbor@upo.es
  • §maxime.defurne@cea.fr
  • cedric.mezrag@cea.fr
  • herve.moutarde@cea.fr
  • **jose.rodriguez@dfaie.uhu.es
  • ††jsegovia@upo.es

See Also

Accessing the Pion 3D Structure at US and China Electron-Ion Colliders

José Manuel Morgado Chávez, Valerio Bertone, Feliciano De Soto Borrero, Maxime Defurne, Cédric Mezrag, Hervé Moutarde, José Rodríguez-Quintero, and Jorge Segovia
Phys. Rev. Lett. 128, 202501 (2022)

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Vol. 105, Iss. 9 — 1 May 2022

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