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Progress in the CTEQ-TEA NNLO global QCD analysis

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arxiv 1908.11394 v1 pith:4ZEDTC7Y submitted 2019-08-29 hep-ph

Tie-Jiun Hou , Keping Xie , Jun Gao , Sayipjamal Dulat , Marco Guzzi , T. J. Hobbs , Joey Huston , Pavel Nadolsky
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Jon Pumplin Carl Schmidt Ibrahim Sitiwaldi Dan Stump C.-P. Yuan
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classification hep-ph
keywords pdfsanalysiscteq-teacollidercrossct18dataglobal
verification ladder T0 review T1 audit T2 compute T3 formal
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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 four families of (N)NLO CTEQ-TEA PDFs, named CT18, A, X and Z PDFs, respectively. 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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Cited by 4 Pith papers

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    A TMD-inspired non-perturbative model plus leading-logarithm perturbative evolution describes the full angular energy-energy correlator in pp and pA jet production and attributes the observed pA suppression to medium-...

  4. Parton Distribution Functions and their Generalizations

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