Published 2016 | Version v1
Journal article Metadata-only

Impact of the HERA I+II combined data on the CT14 QCD global analysis

Creators

  • 1. High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  • 2. School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046 (China)
  • 3. Department of Physics, Southern Methodist University, Dallas, TX 75275-0181 (United States)
  • 4. The University of Manchester, Oxford Road, M13 9PL Manchester, Manchester (United Kingdom)
  • 5. Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 (United States)

Description

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.

Availability note (English)

Available from http://www.epj-conferences.org/articles/epjconf/pdf/2016/24/epjconf_qcd2016_00012.pdf; https://doaj.org/article/e15e7308e26b4d00a34e32eb1f362673; http://dx.doi.org/10.1051/epjconf/201612900012

Additional details

Identifiers

URL
http://www.epj-conferences.org/articles/epjconf/pdf/2016/24/epjconf_qcd2016_00012.pdf; https://doaj.org/article/e15e7308e26b4d00a34e32eb1f362673;
DOI
10.1051/epjconf/201612900012;

Publishing Information

Journal Title
EPJ. Web of Conferences
Journal Volume
129
Journal Page Range
p. 00012
ISSN
2100-014X

Conference

Title
International Workshop on Quantum Chromodynamics - Theory and Experiment
Acronym
QCD@Work 2016
Dates
27-30 Jun 2016
Place
Martina Franca (Italy)

INIS

Country of Publication
France
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
48007568
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CERN LHC; CROSS SECTIONS; DATA ANALYSIS; DEEP INELASTIC SCATTERING; DISTRIBUTION FUNCTIONS; GLOBAL ANALYSIS; GLUONS; HERA STORAGE RING; INCLUSIVE INTERACTIONS; QUANTUM CHROMODYNAMICS; S QUARKS
Descriptors DEC
ACCELERATORS; BOSONS; CYCLIC ACCELERATORS; DATA PROCESSING; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; FUNCTIONS; INELASTIC SCATTERING; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; MATHEMATICS; PARTICLE INTERACTIONS; PROCESSING; QUANTUM FIELD THEORY; QUARKS; SCATTERING; STORAGE RINGS; STRANGE PARTICLES; SYNCHROTRONS

Optional Information

Copyright
Copyright (c) 2016 The Authors. Published by EDP Sciences
Notes
OAI: doaj.org/article:e15e7308e26b4d00a34e32eb1f362673