• Open Access

Parton distribution functions of the charged pion within the xFitter framework

Ivan Novikov, Hamed Abdolmaleki, Daniel Britzger, Amanda Cooper-Sarkar, Francesco Giuli, Alexander Glazov, Aleksander Kusina, Agnieszka Luszczak, Fred Olness, Pavel Starovoitov, Mark Sutton, and Oleksandr Zenaiev (xFitter Developers’ team)
Phys. Rev. D 102, 014040 – Published 23 July 2020
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  • INTRODUCTION
  • EXPERIMENTAL DATA
  • PDF PARAMETRIZATION
  • CROSS SECTION CALCULATION
  • STATISTICAL TREATMENT AND ESTIMATION OF…
  • RESULTS
  • SUMMARY AND OUTLOOK
  • ACKNOWLEDGMENTS
    • References

    Abstract

    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.

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    • Received 24 February 2020
    • Accepted 24 June 2020

    DOI:https://doi.org/10.1103/PhysRevD.102.014040

    Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

    Published by the American Physical Society

    Physics Subject Headings (PhySH)

    1. Research Areas
    Perturbative QCD
    1. Physical Systems
    Pions
    1. Properties
    Form factors
    Particles & Fields

    Authors & Affiliations

    Ivan Novikov1,2,*, Hamed Abdolmaleki3, Daniel Britzger4, Amanda Cooper-Sarkar5, Francesco Giuli6, Alexander Glazov2,†, Aleksander Kusina7, Agnieszka Luszczak8, Fred Olness9, Pavel Starovoitov10, Mark Sutton11, and Oleksandr Zenaiev12 (xFitter Developers’ team)

    • 1Joint Institute for Nuclear Research, Joliot-Curie 6, Dubna, Moscow region 141980, Russia
    • 2Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, D-22607 Hamburg, Germany
    • 3School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), P. O. Box 19395-5531, Tehran, Iran
    • 4Max-Planck-Institut für Physik, Föhringer Ring 6, D-80805 München, Germany
    • 5Particle Physics, Denys Wilkinson Bdg, Keble Road, University of Oxford, OX1 3RH Oxford, United Kingdom
    • 6University of Rome Tor Vergata and INFN, Sezione di Roma 2, Via della Ricerca Scientifica 1,00133 Roma, Italy
    • 7Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland
    • 8T. Kosciuszko Cracow University of Technology, PL-30-084 Cracow, Poland
    • 9Southern Methodist University, Department of Physics, Box 0175 Dallas, Texas 75275-0175, USA
    • 10Kirchhoff-Institut für Physik, Heidelberg University, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany
    • 11Department of Physics and Astronomy, The University of Sussex, Brighton BN1 9RH, United Kingdom
    • 12Hamburg University, II. Institute for Theoretical Physics, Luruper Chaussee 149, D-22761 Hamburg, Germany

    • *ivan.novikov@desy.de
    • †alexander.glazov@desy.de

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    Issue

    Vol. 102, Iss. 1 — 1 July 2020

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