2017/12/31 by Frank Krauss, Davide Napoletano
Mathematics · Physics and Astronomy · #Computer science #Flavour #High-Energy Particle Collisions Research #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Resummation #Scalar (mathematics) #Scheme (mathematics) #Statistical physics #hep-ph
paper · pdf · doi:10.1103/physrevd.98.096002
published as Phys. Rev. D 98, 096002 (2018) · 16 pages, 7 figures
openalex created_date 2018/01/05 · openalex publication_date 2018/11/05 · arxiv created 2018/11/06 · arxiv updated 2018/11/14 · openalex updated_date 2026/08/06
In this paper, we explore first necessary steps to construct a fully massive version of a variable-flavor number scheme. In particular we focus, as an example, on an extension of the five-flavor scheme, where instead of neglecting explicit initial state quark mass effects, we retain all massive dependence, while keeping the resummation properties of the massless five-flavor scheme. We name this scheme the five-flavor-massive scheme. Apart from consistently modified parton distribution functions, we provide all the ingredients that are needed to implement this scheme at MC@NLO accuracy, in a Monte Carlo event generator. As proof of concept we implement this scheme in sherpa and perform a comparison of the new scheme with traditional ones for the simple process of scalar particle production in bottom-quark fusion.