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Extraction of Pion Transverse Momentum Distributions from Drell-Yan data

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arxiv 2210.01733 v1 pith:AQ45K34O submitted 2022-10-04 hep-ph

Matteo Cerutti , Lorenzo Rossi , Simone Venturini , Alessandro Bacchetta , Valerio Bertone , Chiara Bissolotti , Marco Radici This is my paper · ORCID
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keywords momentumpiontmdstransverseunpolarizeddatacrossdistributions
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We map the distribution of unpolarized quarks inside a unpolarized pion as a function of the quark's transverse momentum, encoded in unpolarized Transverse Momentum Distributions (TMDs). We extract the pion TMDs from available data of unpolarized pion-nucleus Drell-Yan processes, where the cross section is differential in the lepton-pair transverse momentum. In the cross section, pion TMDs are convoluted with nucleon TMDs that we consistently take from our previous studies. We obtain a fairly good agreement with data. We present also predictions for pion-nucleus scattering that is being measured by the COMPASS Collaboration.

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Cited by 3 Pith papers

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

  1. Symbolic Extraction of Non-Perturbative Transverse-Momentum-Dependent Distributions from Drell-Yan Data

    hep-ph 2026-07 conditional novelty 6.0 of 10

    Symbolic regression on a factorized NN fit to 482 Drell–Yan points yields a 9-constant analytical non-perturbative TMD with χ²/ndf≈1.04 and a retained x–b_T cross term.

  2. 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.

  3. The 3D structure of the Nucleon in momentum space: TMD phenomenology

    hep-ph 2025-01 conditional novelty 2.0 of 10

    A review showing unpolarized quark TMD fits now reach collinear-PDF-like precision, while polarized and gluon TMDs remain less constrained.

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