XFitter 2.0.0: Heavy quark matching scales: Unifying the FFNS and VFNS

xFitter Developers' Team

Research output: Chapter in Book / Report / Conference proceedingConference contributionAcademicpeer-review

Abstract

xFitter [1] is an open-source package that provides a framework for the determination of the parton distribution functions (PDFs) of the proton for many different kinds of analyses in Quantum Chromodynamics (QCD). It incorporates experimental data from a wide range of experiments including fixed-target, Tevatron, HERA, and LHC. xFitter version 2.0.0 has recently been released, and offers an expanded set of tools and options. The new xFitter 2.0.0 program links to the APFEL code [2] which has implemented generalized matching conditions that enable the switch from NF to NF +1 active flavors at an arbitrary matching scale μm. This enables us to generalize the transition between a FFNS and a VFNS and essentially vary continuously between the two schemes; in this sense the matching scale μm allows us to unify the FFNS and VFNS in a common framework [3]. This paper provides a brief overview of xFitter with emphasis of these new features.

Original languageEnglish
Title of host publicationProceedings of Science - PoS (DIS2018) 015
Pages0-5
Number of pages6
Volume316
DOIs
Publication statusPublished - 26 Aug 2018
Event26th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2018 - Kobe, Japan
Duration: 16 Apr 201820 Apr 2018

Publication series

NameProceedings of Science
PublisherSissa Medialab Srl

Conference

Conference26th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2018
CountryJapan
CityKobe
Period16/04/1820/04/18

Bibliographical note

Issue: XXVI International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2018) - WG1: Structure Functions and Parton Densities

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