Pion partonic distributions in a statistical model from pion-induced Drell-Yan and J / ψ production data

Claude Bourrely, Wen Chen Chang, Jen Chieh Peng

Research output: Contribution to journalArticlepeer-review

Abstract

We present a new analysis to extract pion parton distribution functions (PDFs) within the framework of the statistical model. Starting from the statistical model first developed for the spin-1/2 nucleon, we extend this model to describe the spin-0 pion. Based on a combined fit to both the pion-induced Drell-Yan data and the pion-induced J/ψ production data, a new set of pion PDFs has been obtained. The inclusion of the J/ψ production data in the combined fit has provided additional constraints for better determining the gluon distribution in the pion. We also compare the pion PDFs obtained in the statistical model with other existing pion PDFs.

Original languageEnglish (US)
Article number076018
JournalPhysical Review D
Volume105
Issue number7
DOIs
StatePublished - Apr 1 2022

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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