PoS - Proceedings of Science
Volume 352 - XXVII International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2019) - Working Group 1: Structure Function and Parton Densiies
New CTEQ global analysis with high precision data from the LHC
C.P. Yuan,* T.J. Hou, K. Xie, G. Jun, S. Dulat, M. Guzzi, T.J. Hobbs, J.W. Huston, P. Nadolsky, J. Pumplin, C.R. Schmidt, I. Sitiwaldi, D. Stump
*corresponding author
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Pre-published on: July 21, 2019
Published on: October 04, 2019
We present the new CTEQ-TEA global analysis of quantum chromodynamics (QCD). In this analysis, parton distribution functions (PDFs) of the nucleon are determined within the Hessian method at the next-to-next-to leading order (NNLO) in perturbative QCD, based on the most recent measurements from the Large Hadron Collider (LHC) and a variety of world collider data. Because of difficulties in fitting both the ATLAS 7 and 8 TeV $W$ and $Z$ vector boson production cross section data, we present two families of PDFs, named CT18 and CT18$Z$ PDFs, respectively, without and with the ATLAS 7 TeV $W$ and $Z$ measurements. We study the impact of the CT18 family of PDFs on the theoretical predictions of standard candle cross sections at the LHC.
DOI: https://doi.org/10.22323/1.352.0001
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