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Parton Distribution Functions of the Charged Pion Within The xFitter Framework

MPG-Autoren

Novikov,  Ivan
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Abdolmaleki,  Hamed
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Britzger,  Daniel
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Cooper-Sarkar,  Amanda
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Giuli,  Francesco
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Glazov,  Alexander
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kusina,  Aleksander
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Luszczak,  Agnieszka
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Olness,  Fred
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Starovoitov,  Pavel
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sutton,  Mark
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Zenaiev,  Oleksandr
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Zitation

Novikov, I., Abdolmaleki, H., Britzger, D., Cooper-Sarkar, A., Giuli, F., Glazov, A., et al. (2020). Parton Distribution Functions of the Charged Pion Within The xFitter Framework. Physical Review D, 102, 014040. doi:10.1103/PhysRevD.102.014040.


Zitierlink: https://hdl.handle.net/21.11116/0000-0008-1C4B-6
Zusammenfassung
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 the 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 the JAM collaboration and the GRV group.