xFitter 2.0.0: Heavy quark matching scales: Unifying the FFNS and VFNS
Authors:
- V. Bertone,
- D. Britzger,
- S. Camarda,
- A. Cooper-Sarkar,
- A. Geiser,
- F. Giuli,
- A. Glazov,
- E. Godat,
- A. Kusina,
- A. Luszczak,
- F. Lyonnet,
- F. Olness,
- R. Plačakytė,
- V. Radescu,
- I. Schienbein,
- O. Zenaiev
Abstract
xFitter is an open-source package that provides a framework for thedetermination of the parton distribution functions (PDFs) of theproton for many different kinds of analyses in Quantum Chromodynamics(QCD). It incorporates experimental data from a wide range ofexperiments including fixed-target, Tevatron, HERA, and LHC. xFitterversion 2.0.0 has recently been released, and offers an expanded setof tools and options. The new xFitter 2.0.0 program links to theAPFEL code which has implemented generalized matching conditions thatenable the switch from NF to NF+1 active flavors at an arbitrarymatching scale mu_m. This enables us to generalize the transitionbetween a FFNS and a VFNS and essentially vary continuously between thetwo schemes; in this sense the matching scale mu_m allows us to unifythe FFNS and VFNS in a common framework. This paper provides a briefoverview of xFitter with emphasis of these new features.
- Record ID
- CUTc0179489ed684dbb85decd308a0f155b
- Publication categories
- ; ;
- Author
- Journal series
- PoS - Proceedings of Science, ISSN 1824-8039, Irregular
- Issue year
- 2018
- Vol
- 316
- Pages
- [1-6]
- Article number
- PoS(DIS2018)015
- Other elements of collation
- fot.; schem.; wykr.; Bibliografia (na s.) - [6]; Bibliografia (liczba pozycji) - 12; Oznaczenie streszczenia - Streszcz. ang.; Numeracja w czasopiśmie - Vol. 316
- Conference
- XXVI International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2018), 2018, 16-04-2018 - 20-04-2018, Kobe, Japonia
- Keywords in English
- xFitter, heavy quark, matching scales, unifying the FFNS and VFNS
- DOI
- DOI:10.22323/1.316.0015 Opening in a new tab
- URL
- https://pos.sissa.it/316/ Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 15
- Additional fields
- Indeksowana w: Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTc0179489ed684dbb85decd308a0f155b/
- URN
urn:pkr-prod:CUTc0179489ed684dbb85decd308a0f155b
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.