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Title: Comprehensive description of J / ψ production in proton-proton collisions at collider energies

Journal Article · · Physical Review Letters
 [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)

We employ a small x Color Glass Condensate + Non-Relativistic QCD (NRQCD) formalism to compute J/ψ production at low p⊥ in proton-proton collisions at collider energies. Very good agreement is obtained for total cross-sections, rapidity distributions and low momentum p⊥ distributions. Similar agreement is obtained for ψ' production. We observe an overlap region in p⊥ where our results match smoothly to those obtained in a next-to-leading order (NLO) collinearly factorized NRQCD formalism. The relative contribution of color singlet and color octet contributions can be quantified in the CGC+NRQCD framework, with the former contributing approximately 10% of the total cross-section.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC00112704; AC02-98CH10886
OSTI ID:
1176992
Alternate ID(s):
OSTI ID: 1181301
Report Number(s):
BNL-107346-2015-JA; PRLTAO; R&D Project: KB0301020; KB0301020
Journal Information:
Physical Review Letters, Vol. 113, Issue 19; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 98 works
Citation information provided by
Web of Science

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Measurement of J/psi production in pp collisions at sqrt(s)=7 TeV text January 2011
Inclusive J/psi production in pp collisions at sqrt(s) = 2.76 TeV text January 2012
Measurement of psi(2S) meson production in pp collisions at sqrt(s)=7 TeV text January 2012
Nuclear modification of the J/Psi transverse momentum distributions in high energy pA and AA collisions preprint January 2012
Heavy quark pair production in high energy pA collisions: Quarkonium text January 2013
Heavy Quarkonium Production at Collider Energies: Factorization and Evolution text January 2014
Gluon saturation and initial conditions for relativistic heavy ion collisions text January 2014
Fragmentation contributions to J/psi production at the Tevatron and the LHC text January 2014
Matching Collinear and Small-x Factorization Calculations for Inclusive Hadron Production in pA Collisions text January 2014
New Generation of Parton Distributions with Uncertainties from Global QCD Analysis text January 2002
Quantitative study of the violation of kt-factorization in hadroproduction of quarks at collider energies text January 2005
Quark pair production in high energy pA collisions: General features text January 2006
Gluon Distribution Functions for Very Large Nuclei at Small Transverse Momentum text January 1993
The Wilson renormalization group for low x physics: Gluon evolution at finite parton density text January 1997

Cited By (13)

New factorization theory for heavy quarkonium production and decay journal November 2019
Saturation and forward jets in proton-lead collisions at the LHC journal December 2019
Linearly polarized gluons in charmonium and bottomonium production in the color octet model journal February 2017
Event engineering studies for heavy flavor production and hadronization in high multiplicity hadron-hadron and hadron-nucleus collisions journal October 2018
Diffractive dijet production and Wigner distributions from the color glass condensate journal April 2019
Energy dependence of direct-quarkonium production in $$\varvec{pp}$$ p p collisions from fixed-target to LHC energies: complete one-loop analysis journal July 2015
Heavy-flavour and quarkonium production in the LHC era: from proton–proton to heavy-ion collisions journal February 2016
Energy dependence of forward-rapidity $$\mathrm {J}/\psi $$ J / ψ and $$\psi \mathrm {(2S)}$$ ψ ( 2 S ) production in pp collisions at the LHC journal June 2017
Single-spin asymmetries in $$p^\uparrow p \rightarrow J/\psi +X$$p↑p→J/ψ+X within a TMD approach: role of the color octet mechanism journal December 2019
Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions text January 2015
Revealing proton shape fluctuations with incoherent diffraction at high energy text January 2016
Probing gluon saturation with next-to-leading order photon production at central rapidities in proton-nucleus collisions text January 2016
New factorization theory for heavy quarkonium production and decay text January 2017

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