New CTEQ global analysis with high precision data from the LHC
Authors:
- C. P. YuanCYC. P. Yuan
- Tie-Jiun HouTHTie-Jiun Hou
- Keping XieKXKeping Xie
- Gao JunGJGao Jun
- Sayipjamal DulatSDSayipjamal Dulat
- Marco GuzziMGMarco Guzzi
- Timothy J. HobbsTHTimothy J. Hobbs
- Joey Walter HustonJHJoey Walter Huston
- Pavel NadolskyPNPavel Nadolsky
- Jon PumplinJPJon Pumplin
- Carl R. SchmidtCSCarl R. Schmidt
- Ibrahim SitiwaldiISIbrahim Sitiwaldi
Open Access
- 21 July 2019
- conference paper
- Published by Sissa Medialab Srl
- Vol. 352, 001
Abstract
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.
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This publication has 7 references indexed in Scilit:
- Precision measurement and interpretation of inclusive $W^+$ W + , $W^-$ W - and $Z/\gamma ^*$ Z / γ ∗ production cross sections with the ATLAS detectorThe European Physical Journal C, 2017
- Measurement and QCD analysis of double-differential inclusive jet cross sections in pp collisions at s = 8 $ \sqrt{s}=8 $ TeV and cross section ratios to 2.76 and 7 TeVJournal of High Energy Physics, 2017
- Precise QCD Predictions for the Production of aBoson in Association with a Hadronic JetPhysical Review Letters, 2016
- Measurement of the transverse momentum and $\phi ^*_{\eta }$ ϕ η ∗ distributions of Drell–Yan lepton pairs in proton–proton collisions at $\sqrt{s}=8$ s = 8 TeV with the ATLAS detectorThe European Physical Journal C, 2016
- New parton distribution functions from a global analysis of quantum chromodynamicsPhysical Review D, 2016
- Measurement of the ratio of inclusive jet cross sections using the anti- algorithm with radius parameters and 0.7 in collisions atPhysical Review D, 2014
- A posteriori inclusion of parton density functions in NLO QCD final-state calculations at hadron colliders: the APPLGRID projectThe European Physical Journal C, 2010