Back to Search
Start Over
Impact of the HERA I+II combined data on the CT14 QCD global analysis
- Source :
- EPJ Web of Conferences, Vol 129, p 00012 (2016)
- Publication Year :
- 2016
- Publisher :
- EDP Sciences, 2016.
-
Abstract
- A brief description of the impact of the recent HERA run I+II combination of inclusive deep inelastic scattering cross-section data on the CT14 global analysis of PDFs is given. The new CT14HERA2 PDFs at NLO and NNLO are illustrated. They employ the same parametrization used in the CT14 analysis, but with an additional shape parameter for describing the strange quark PDF. The HERA I+II data are reasonably well described by both CT14 and CT14HERA2 PDFs, and differences are smaller than the PDF uncertainties of the standard CT14 analysis. Both sets are acceptable when the error estimates are calculated in the CTEQ-TEA (CT) methodology and the standard CT14 PDFs are recommended to be continuously used for the analysis of LHC measurements.
- Subjects :
- Quantum chromodynamics
Quark
Physics
Particle physics
Strange quark
Large Hadron Collider
010308 nuclear & particles physics
QC1-999
HERA
Deep inelastic scattering
01 natural sciences
Shape parameter
Nuclear physics
0103 physical sciences
High Energy Physics::Experiment
010306 general physics
Parametrization
Subjects
Details
- Language :
- English
- Volume :
- 129
- Database :
- OpenAIRE
- Journal :
- EPJ Web of Conferences
- Accession number :
- edsair.doi.dedup.....482d8defc6cdae0588dcc8679cef00e7