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.
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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