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Title: New parton distribution functions from a global analysis of quantum chromodynamics

Abstract

Here, we present new parton distribution functions (PDFs) up to next-to-next-to-leading order (NNLO) from the CTEQ-TEA global analysis of quantum chromodynamics. These differ from previous CT PDFs in several respects, including the use of data from LHC experiments and the new D0 charged lepton rapidity asymmetry data, as well as the use of more flexible parametrization of PDFs that, in particular, allows a better fit to different combinations of quark flavors. Predictions for important LHC processes, especially Higgs boson production at 13 TeV, are presented. These CT14 PDFs include a central set and error sets in the Hessian representation. For completeness, we also present the CT14 PDFs determined at the leading order (LO) and the next-to-leading order (NLO) in QCD. Besides these general-purpose PDF sets, we provide a series of (N)NLO sets with various α s values and additional sets in general-mass variable flavor number (GM-VFN) schemes, to deal with heavy partons, with up to 3, 4, and 6 active flavors.

Authors:
 [1];  [2];  [3];  [4];  [2];  [5];  [5];  [5];  [5];  [5]
  1. Xinjiang Univ., Xinjiang (China); Michigan State Univ., East Lansing, MI (United States)
  2. Southern Methodist Univ., Dallas, TX (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Univ. of Manchester, Manchester (United Kingdom)
  5. Michigan State Univ., East Lansing, MI (United States)
Publication Date:
Research Org.:
Southern Methodist Univ., Dallas, TX (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1257282
Alternate Identifier(s):
OSTI ID: 1238094
Grant/Contract Number:  
SC0013681; SC0003870; FG02-96ER40969; AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 93; Journal Issue: 3; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Dulat, Sayipjamal, Hou, Tie -Jiun, Gao, Jun, Guzzi, Marco, Nadolsky, Pavel, Pumplin, Jon, Schmidt, Carl, Stump, Daniel, Yuan, C. -P., and Huston, Joey. New parton distribution functions from a global analysis of quantum chromodynamics. United States: N. p., 2016. Web. doi:10.1103/PhysRevD.93.033006.
Dulat, Sayipjamal, Hou, Tie -Jiun, Gao, Jun, Guzzi, Marco, Nadolsky, Pavel, Pumplin, Jon, Schmidt, Carl, Stump, Daniel, Yuan, C. -P., & Huston, Joey. New parton distribution functions from a global analysis of quantum chromodynamics. United States. doi:10.1103/PhysRevD.93.033006.
Dulat, Sayipjamal, Hou, Tie -Jiun, Gao, Jun, Guzzi, Marco, Nadolsky, Pavel, Pumplin, Jon, Schmidt, Carl, Stump, Daniel, Yuan, C. -P., and Huston, Joey. Tue . "New parton distribution functions from a global analysis of quantum chromodynamics". United States. doi:10.1103/PhysRevD.93.033006. https://www.osti.gov/servlets/purl/1257282.
@article{osti_1257282,
title = {New parton distribution functions from a global analysis of quantum chromodynamics},
author = {Dulat, Sayipjamal and Hou, Tie -Jiun and Gao, Jun and Guzzi, Marco and Nadolsky, Pavel and Pumplin, Jon and Schmidt, Carl and Stump, Daniel and Yuan, C. -P. and Huston, Joey},
abstractNote = {Here, we present new parton distribution functions (PDFs) up to next-to-next-to-leading order (NNLO) from the CTEQ-TEA global analysis of quantum chromodynamics. These differ from previous CT PDFs in several respects, including the use of data from LHC experiments and the new D0 charged lepton rapidity asymmetry data, as well as the use of more flexible parametrization of PDFs that, in particular, allows a better fit to different combinations of quark flavors. Predictions for important LHC processes, especially Higgs boson production at 13 TeV, are presented. These CT14 PDFs include a central set and error sets in the Hessian representation. For completeness, we also present the CT14 PDFs determined at the leading order (LO) and the next-to-leading order (NLO) in QCD. Besides these general-purpose PDF sets, we provide a series of (N)NLO sets with various αs values and additional sets in general-mass variable flavor number (GM-VFN) schemes, to deal with heavy partons, with up to 3, 4, and 6 active flavors.},
doi = {10.1103/PhysRevD.93.033006},
journal = {Physical Review D},
number = 3,
volume = 93,
place = {United States},
year = {2016},
month = {2}
}

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Measurement of the top quark pair production cross section in pp collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math> in dilepton final states with ATLAS
journal, February 2012


Measurement of the $ \mathrm{t}\overline{\mathrm{t}} $ production cross section in the dilepton channel in pp collisions at $ \sqrt{s}=7 $ TeV
journal, November 2012

  • Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.
  • Journal of High Energy Physics, Vol. 2012, Issue 11
  • DOI: 10.1007/JHEP11(2012)067

Constraints on the gluon PDF from top quark pair production at hadron colliders
journal, July 2013

  • Czakon, Michal; Mangano, Michelangelo L.; Mitov, Alexander
  • Journal of High Energy Physics, Vol. 2013, Issue 7
  • DOI: 10.1007/JHEP07(2013)167

Top-quark pair production at hadron colliders: differential cross section and phenomenological applications with DiffTop
journal, January 2015

  • Guzzi, Marco; Lipka, Katerina; Moch, Sven-Olaf
  • Journal of High Energy Physics, Vol. 2015, Issue 1
  • DOI: 10.1007/JHEP01(2015)082

Parton distributions for the LHC
journal, July 2009


Parametrization dependence and Δ χ 2 in parton distribution fitting
journal, December 2010


    Works referencing / citing this record:

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    Towards ultimate parton distributions at the high-luminosity LHC
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    • Aaij, R.; Adeva, B.; Adinolfi, M.
    • Journal of High Energy Physics, Vol. 2018, Issue 9
    • DOI: 10.1007/jhep09(2018)159

    b -hadron production in the general-mass variable-flavor-number scheme and the LHC data
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    FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1
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    Illuminating the photon content of the proton within a global PDF analysis
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    Two-loop splitting in double parton distributions
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    Measurement of jet substructure observables in t t ¯ events from proton-proton collisions at s = 13 TeV
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    Top-quark charge asymmetry at the LHC and Tevatron through NNLO QCD and NLO EW
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    Collinear and TMD parton densities from fits to precision DIS measurements in the parton branching method
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    Charm production and QCD analysis at HERA and LHC
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    Measurement of jet production cross sections in deep-inelastic ep scattering at HERA: H1 Collaboration
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    Constraints on the intrinsic charm content of the proton from recent ATLAS data
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    Neutral pion and $$\eta $$ η meson production in p–Pb collisions at $$\sqrt{s_{\mathrm{NN}}}$$ s NN  = 5.02 TeV
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    Factorization of Jet Cross Sections in Heavy-Ion Collisions
    journal, June 2019


    A precise determination of the top-quark pole mass
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    Vector boson production in association with a jet at forward rapidities
    journal, June 2019


    B-meson production in the general-mass variable-flavour-number scheme and LHC data
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    Measurement of the inclusive isolated photon production cross section in $$\text{ p }\text{ p }$$pp collisions at $$\sqrt{s}=7$$s=7 TeV
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    Trace of nonperturbative charm content of the nucleon on Z + c-jet production
    journal, June 2017


    Impact of the top quark cross-section data on parton distribution functions
    journal, August 2018

    • Azizi, M.; Khorramian, A.; Abdolmaleki, H.
    • International Journal of Modern Physics A, Vol. 33, Issue 24
    • DOI: 10.1142/s0217751x18501427

    Multiplicity Dependence in the Non-Extensive Hadronization Model Calculated by the HIJING++ Framework
    journal, June 2019