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The transverse structure of the pion in momentum space inspired by the AdS/QCD correspondence

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arxiv 1703.07669 v1 pith:B6VSU4KH submitted 2017-03-22 hep-ph

Alessandro Bacchetta , Sabrina Cotogno , Barbara Pasquini This is my paper · ORCID
classification hep-ph
keywords modelpioncorrespondencedistributionexperimentalfunctioninspiredlfwf
verification ladder T0 review T1 audit T2 compute T3 formal
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We study the internal structure of the pion using a model inspired by the AdS/QCD correspondence. The holographic approach provides the light-front wave function (LFWF) for the leading Fock state component of the pion. We adopt two different forms for the LFWF derived from the AdS/QCD soft-wall model, with free parameters fitted to the available experimental information on the pion electromagnetic form factor and the leading-twist parton distribution function. The intrinsic scale of the model is taken as an additional fit parameter. Within this framework, we provide predictions for the unpolarized transverse momentum dependent parton distribution (TMD), and discuss its property both at the scale of the model and after TMD evolution to higher scales that are relevant for upcoming experimental measurements.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. New insights from the flavor dependence of quark transverse momentum distributions in the pion

    hep-ph 2025-09 conditional novelty 6.0 of 10

    First flavor-dependent extraction of unpolarized quark TMDs in the pion, finding a wider transverse momentum tail for valence d quarks than for sea quarks, with large uncertainties.

  2. A holographic analysis of the pion

    hep-ph 2024-12 conditional novelty 5.0 of 10

    The pion's measured mass, decay constant, and charge radius fix two longitudinal-potential models that then reproduce its measured electromagnetic and transition form factors at low Q^2.

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