Intrinsic charm in a matched general-mass scheme

Richard D. Ball, Valerio Bertone, Marco Bonvini, Stefano Forte, Patrick Groth Merrild, Juan Rojo, Luca Rottoli

Research output: Contribution to journalArticlepeer-review

Abstract

The FONLL general-mass variable-flavour number scheme provides a framework for the matching of a calculation in which a heavy quark is treated as a massless parton to one in which the mass dependence is retained throughout. We describe how the usual formulation of FONLL can be extended in such a way that the heavy quark parton distribution functions are freely parameterized at some initial scale, rather than being generated entirely perturbatively. We specifically consider the case of deep-inelastic scattering, in view of applications to PDF determination, and the possible impact of a fitted charm quark distribution on $F_2^c$ is assessed.
Original languageEnglish
JournalPhysics Letters B
DOIs
Publication statusPublished - 8 Jan 2016

Keywords

  • hep-ph

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