Modern parton distribution function fits require an accurate treatment of heavy quark mass effects. In this contribution, we discuss how the FONLL general-mass variable flavour number scheme can be extended to allow for the possibility of a fitted charm PDF. We present a first estimate of the impact of a fitted charm contribution in the FONLL structure functions, and we discuss the development towards including a fitted charm PDF in the NNPDF framework.
Groth-Merrild, P., Rottoli, L. (2016). Towards parton distributions with fitted charm. Intervento presentato a: High-Energy Physics International Conference in Quantum Chromodynamics (QCD 15), Montpellier, France [10.1016/j.nuclphysbps.2016.02.006].
Towards parton distributions with fitted charm
Rottoli L.
2016
Abstract
Modern parton distribution function fits require an accurate treatment of heavy quark mass effects. In this contribution, we discuss how the FONLL general-mass variable flavour number scheme can be extended to allow for the possibility of a fitted charm PDF. We present a first estimate of the impact of a fitted charm contribution in the FONLL structure functions, and we discuss the development towards including a fitted charm PDF in the NNPDF framework.
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