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Parton Distribution Functions of the Charged Pion Within The xFitter Framework

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arxiv 2002.02902 v2 pith:X2ZWSUHY submitted 2020-02-07 hep-ph

Parton Distribution Functions of the Charged Pion Within The xFitter Framework

classification hep-ph
keywords distributionchargeddataframeworkfunctionsgluonopen-sourceparton
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present the first open-source analysis of parton distribution functions (PDFs) of charged pions using xFitter, an open-source QCD fit framework to facilitate PDF extraction and analyses. Our calculations are implemented at next-to-leading order (NLO) using APPLgrids generated by MCFM generator. Using currently available Drell-Yan and photon production data, we find the valence distribution is well constrained; however, the considered data are not sensitive enough to unambiguously determine sea and gluon distributions. Fractions of momentum carried by the valence, sea and gluon components are discussed, and we compare with the results of JAM collaboration and the GRV group.

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Forward citations

Cited by 8 Pith papers

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

  1. Determination of Fragmentation Functions from Charge Asymmetries in Hadron Production

    hep-ph 2025-07 unverdicted novelty 7.0

    Non-singlet fragmentation functions of pions and kaons are determined at NNLO QCD from charge asymmetry measurements in e+e- annihilation and SIDIS, yielding a scaling index of 0.7 and strangeness suppression of 0.5.

  2. Mellin Moments of Pion and Kaon Unpolarized PDFs from Nonlocal Operators in Lattice QCD

    hep-lat 2026-06 unverdicted novelty 6.0

    First lattice QCD results for Mellin moments of pion and kaon unpolarized PDFs from nonlocal operator matrix elements on a 32^3×64 twisted-mass ensemble at m_π=260 MeV, extracted at NNLO and μ=2 GeV.

  3. Pion parton distribution functions and pion-nucleus induced $J/\psi$ production in extended light-front holographic QCD

    hep-ph 2026-05 unverdicted novelty 5.0

    Pion PDFs from holographic light-front QCD are consistent with global analyses and produce J/ψ cross sections matching experimental data across energies and targets.

  4. Valence quark distribution of the pion inside a medium with finite baryon density: A Nambu--Jona-Lasinio model approach

    hep-ph 2025-12 unverdicted novelty 5.0

    The authors use the two-flavor NJL model to obtain medium-modified constituent quark masses and then compute the in-medium pion electromagnetic form factor, distribution amplitude, and parton distribution function via...

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    hep-ph 2026-05 unverdicted novelty 4.0

    Pion PDFs derived from holographic light-front wave functions yield NLO J/ψ production cross sections in pion-nucleus collisions that agree with data.

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

    hep-ph 2026-04 unverdicted novelty 4.0

    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.

  7. 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.

  8. Hadron Structure from lattice QCD in the context of the Electron-Ion Collider

    hep-lat 2026-03 unverdicted novelty 2.0

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