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 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 F2c is assessed.
Original languageEnglish
Pages (from-to)49-58
JournalPhysics Letters B
Volume754
DOIs
Publication statusPublished - 10 Mar 2016

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quarks
partons
inelastic scattering
distribution functions
formulations

Bibliographical note

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

Keywords

  • hep-ph

Cite this

Ball, R. D., Bertone, V., Bonvini, M., Forte, S., Merrild, P. G., Rojo, J., & Rottoli, L. (2016). Intrinsic charm in a matched general-mass scheme. Physics Letters B, 754, 49-58. https://doi.org/10.1016/j.physletb.2015.12.077
Ball, Richard D. ; Bertone, Valerio ; Bonvini, Marco ; Forte, Stefano ; Merrild, Patrick Groth ; Rojo, Juan ; Rottoli, Luca. / Intrinsic charm in a matched general-mass scheme. In: Physics Letters B. 2016 ; Vol. 754. pp. 49-58.
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Ball, RD, Bertone, V, Bonvini, M, Forte, S, Merrild, PG, Rojo, J & Rottoli, L 2016, 'Intrinsic charm in a matched general-mass scheme' Physics Letters B, vol. 754, pp. 49-58. https://doi.org/10.1016/j.physletb.2015.12.077

Intrinsic charm in a matched general-mass scheme. / Ball, Richard D.; Bertone, Valerio; Bonvini, Marco; Forte, Stefano; Merrild, Patrick Groth; Rojo, Juan; Rottoli, Luca.

In: Physics Letters B, Vol. 754, 10.03.2016, p. 49-58.

Research output: Contribution to Journal › Article › Academic › peer-review

TY - JOUR

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

Y1 - 2016/3/10

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

VL - 754

SP - 49

EP - 58

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

ER -

Ball RD, Bertone V, Bonvini M, Forte S, Merrild PG, Rojo J et al. Intrinsic charm in a matched general-mass scheme. Physics Letters B. 2016 Mar 10;754:49-58. https://doi.org/10.1016/j.physletb.2015.12.077

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