CT10 parton distributions and other developments in the global QCD analysis
Marco Guzzi, Pavel Nadolsky, Edmond Berger, Hung-Liang Lai, Fredrick, Olness, and C.-P. Yuan
TL;DR
This paper summarizes the 2010 developments in the CTEQ global analysis of proton parton distribution functions, including new PDF sets, data integration, theoretical issues, and constraints on new particles.
Contribution
It introduces the CT10 PDF family, discusses data combination methods, addresses theoretical challenges, and explores implications for new physics beyond the Standard Model.
Findings
Introduction of CT10 PDFs with fixed and variable QCD coupling
Successful integration of HERA and Tevatron lepton asymmetry data
Constraints on new color-octet fermions from hadronic data
Abstract
We summarize several projects carried out by the CTEQ global analysis of parton distribution functions (PDFs) of the proton during 2010. We discuss a recently released CT10 family of PDFs with a fixed and variable QCD coupling strength; implementation of combined HERA and Tevatron lepton asymmetry data sets; theoretical issues associated with the analysis of charge asymmetry in PDF fits; PDFs for leading-order shower programs; and constraints on new color-octet fermions from the hadronic data.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research