Towards parton distributions with fitted charm
arXiv:1509.04432
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.
4 pages, 1 figure, to appear in the proceedings of the 18th High-Energy Physics International Conference in Quantum Chromodynamics (QCD 15), 29 Jun-03 Jul 2015, Montpellier