Towards parton distributions with fitted charm
Patrick Groth Merrild, Luca Rottoli
TL;DR
This paper explores extending the FONLL scheme to include a fitted charm parton distribution function, assessing its impact on structure functions and development within the NNPDF framework.
Contribution
It introduces a method to incorporate a fitted charm PDF into the FONLL scheme and discusses its implementation in the NNPDF framework.
Findings
Fitted charm can significantly affect structure functions.
First estimate of the impact of a fitted charm PDF.
Development towards including fitted charm in NNPDF.
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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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions