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Pion GPDs: A path toward phenomenology

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arxiv 2110.06052 v1 pith:CKBZA3RB submitted 2021-10-12 hep-ph nucl-th

Pion GPDs: A path toward phenomenology

Jos\'e Manuel Morgado Chavez , Valerio Bertone , Feliciano De Soto Borrero , Maxime Defurne , C\'edric Mezrag , Herv\'e Moutarde , Jos\'e Rodr\'iguez-Quintero , Jorge Segovia This is my paper
classification hep-ph nucl-th
keywords partondistributionmodelspionfunctionsgeneralisedresultsstandard
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We introduce a new family of Generalised Parton Distribution models able to fulfil 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 Generalised 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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Cited by 3 Pith papers

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  1. Extraction of Pion Unpolarized Quark Generalized Parton Distribution from Charge Form Factors

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    Pion unpolarized quark GPDs at zero skewness are extracted from a data-driven fit to the electromagnetic form factor and PDFs using a parameterized form factor embedded in a PDF-plus-profile GPD framework.

  2. An Analysis on the Parton Distribution Functions of Heavy Mesons

    hep-ph 2026-05 unverdicted novelty 3.0

    Light-cone quark model PDFs for kaon and heavy mesons are evolved via NLO DGLAP to predict EIC structure functions and COMPASS Drell-Yan cross sections while showing heavy constituents dominate momentum fractions.

  3. Three-dimensional imaging of hadrons with hard exclusive reactions: advances in experiment, theory, phenomenology, and lattice QCD

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    A community white paper reviewing GPD-based 3D imaging of hadrons — experiment, theory, phenomenology, lattice QCD — and the roadmap toward precision tomography at JLab, COMPASS, J-PARC, and future electron-ion colliders.