Parton Distribution Functions of the Charged Pion Within The xFitter Framework

Understand

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.