A Variable Flavour Number Scheme for Charged Current Heavy Flavour Structure Functions

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dc.creatorThorne, R. S.
dc.creatorRoberts, R. G.
dc.date2000-10-31
dc.date2001-01-26
dc.date.accessioned2026-07-07T12:26:06Z
dc.date.available2026-07-07T12:26:06Z
dc.descriptionThe Thorne-Roberts variable flavour number scheme (VFNS) for heavy quarks is presented in detail for the specific case of charged current DIS. As in neutral current DIS this provides a smooth extrapolation from the fixed flavour number scheme (FFNS) appropriate at low $Q^2$ to the zero-mass variable flavour number scheme (ZM-VFNS) appropriate as $Q^2 \to \infty$, and differs from alternative versions of a VFNS by the definition of the coefficient functions at each order, and the strict ordering of the expansion in $α_S$. However, there are subtle differences from the neutral current case which are addressed here. We discuss both the LO and NLO expressions, the latter unfortunately requiring some (minimal) modelling due to the current lack of some necessary ${\cal O}(α^2_S)$ FFNS coefficient functions.
dc.description16 pages, 5 figures. Revised version to be published in Eur. Phys. J
dc.identifierhttps://arxiv.org/abs/hep-ph/0010344
dc.identifierhttp://arxiv.org/abs/hep-ph/0010344
dc.identifierEur.Phys.J.C19:339-349,2001
dc.identifierdoi:10.1007/s100520100605
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214774
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA Variable Flavour Number Scheme for Charged Current Heavy Flavour Structure Functions
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