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

School of Physics and Astronomy

Research output: Contribution to journal › Article › 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 $F_2^c$ is assessed.

Original language	English
Journal	Physics Letters B
DOIs	https://doi.org/10.1016/j.physletb.2015.12.077
Publication status	Published - 8 Jan 2016

Keywords

hep-ph

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10.1016/j.physletb.2015.12.077

https://arxiv.org/abs/1510.00009

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Particle Theory at the Higgs Centre
Ball, R., Berera, A., Boyle, P., Callison-Burch, C., Del Debbio, L., Gardi, E., Kennedy, A., O'Connell, D., Zwicky, R., Berera, A., Boyle, P., Buckley, A., Del Debbio, L., Gardi, E., Horsley, R., Kennedy, A., Kenway, R., O'Connell, D., Smillie, J. & Zwicky, R.
STFC
1/10/14 → 30/09/18
Project: Research

Cite this

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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 $F_2^c$ is assessed.",

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author = "Ball, {Richard D.} and Valerio Bertone and Marco Bonvini and Stefano Forte and Merrild, {Patrick Groth} and Juan Rojo and Luca Rottoli",

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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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 - 2016/1/8

Y1 - 2016/1/8

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 $F_2^c$ 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 $F_2^c$ is assessed.

KW - hep-ph

U2 - 10.1016/j.physletb.2015.12.077

DO - 10.1016/j.physletb.2015.12.077

M3 - Article

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

ER -

Intrinsic charm in a matched general-mass scheme

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Particle Theory at the Higgs Centre

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