Intrinsic charm in a matched general-mass scheme

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

doi:10.1016/j.physletb.2015.12.077

Intrinsic charm in a matched general-mass scheme

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

(Astro)-Particles Physics

Research output: Contribution to Journal › Article › Academic › peer-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 F₂^c is assessed.

Original language	English
Pages (from-to)	49-58
Journal	Physics Letters B
Volume	754
DOIs	https://doi.org/10.1016/j.physletb.2015.12.077
Publication status	Published - 10 Mar 2016

Bibliographical note

16 pages, 5 figures. Final version, to be published in Physics Letters B. Typo in eq 13 corrected, minor clarifications added

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hep-ph

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10.1016/j.physletb.2015.12.077

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title = "Intrinsic charm in a matched general-mass scheme",

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 F2c is assessed.",

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T1 - Intrinsic charm in a matched general-mass scheme

AU - Ball, Richard D.

AU - Bertone, Valerio

AU - Bonvini, Marco

AU - Forte, Stefano

AU - Merrild, Patrick Groth

AU - Rojo, Juan

AU - Rottoli, Luca

N1 - 16 pages, 5 figures. Final version, to be published in Physics Letters B. Typo in eq 13 corrected, minor clarifications added

PY - 2016/3/10

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N2 - 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 F2c is assessed.

AB - 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 F2c is assessed.

KW - hep-ph

U2 - 10.1016/j.physletb.2015.12.077

DO - 10.1016/j.physletb.2015.12.077

M3 - Article

SN - 0370-2693

VL - 754

SP - 49

EP - 58

JO - Physics Letters B

JF - Physics Letters B

ER -

Intrinsic charm in a matched general-mass scheme

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Keywords

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