Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Quarkonium production in an improved color evaporation model

Journal Article · · Physical Review D
 [1];  [2]
  1. Peking Univ., Beijing (China). School of Physics. State Key Lab. of Nuclear Physics and Technology. Center for High Energy Physics; Collaborative Innovation Center of Quantum Matter, Beijing (China)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Nuclear and Chemical Sciences Division; Univ. of California, Davis, CA (United States). Physics Dept.
+ Show Author Affiliations
In this paper, we propose an improved version of the color evaporation model to describe heavy quarkonium production. In contrast to the traditional color evaporation model, we impose the constraint that the invariant mass of the intermediate heavy quark-antiquark pair be larger than the mass of produced quarkonium. We also introduce a momentum shift between the heavy quark-antiquark pair and the quarkonium. Finally, numerical calculations show that our model can describe the charmonium yields as well as the ratio of ψ' over J/ψ better than the traditional color evaporation model.
Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1366931
Alternate ID(s):
OSTI ID: 1338113
Report Number(s):
LLNL-JRNL--702881
Journal Information:
Physical Review D, Journal Name: Physical Review D Journal Issue: 11 Vol. 94; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (27)

Producing heavy quark flavors in hadronic collisions—' A test of quantum chromodynamics journal March 1977
CVC for gluons and hadroproduction of quark flavours journal July 1977
Hadronic production of J/ψ associated with a gluon journal January 1980
Heavy-quark correlations in hadron collisions at next-to-leading order journal April 1992
Quarkonium production in the LHC era: A polarized perspective journal September 2014
Narrowing the uncertainty on the total charm cross section and its effect on the J / ψ cross section journal January 2013
Hadronic production of the ψ J meson journal December 1976
Rigorous QCD analysis of inclusive annihilation and production of heavy quarkonium journal February 1995
Nonrelativistic QCD factorization and the velocity dependence of NNLO poles in heavy quarkonium production journal October 2006
QCD radiative correction to color-octet J / ψ inclusive production at B factories journal February 2010
New parton distributions for collider physics journal October 2010
QCD radiative corrections to χ c J production at hadron colliders journal June 2011
Ground and excited state charmonium production in p + p collisions at s = 200     GeV journal May 2012
Reconciling J / ψ Production at HERA, RHIC, Tevatron, and LHC with Nonrelativistic QCD Factorization at Next-to-Leading Order journal January 2011
J / ψ ( ψ ′ ) Production at the Tevatron and LHC at O ( α s 4 v 4 ) in Nonrelativistic QCD journal January 2011
J / ψ Polarization at Hadron Colliders in Nonrelativistic QCD journal June 2012
Polarization for Prompt J / ψ and ψ ( 2 s ) Production at the Tevatron and LHC journal January 2013
Fragmentation Contributions to J / ψ Production at the Tevatron and the LHC journal July 2014
Comprehensive Description of J / ψ Production in Proton-Proton Collisions at Collider Energies journal November 2014
η c Production at LHC and Implications for the Understanding of J / ψ Production journal March 2015
Impact of η c Hadroproduction Data on Charmonium Production and Polarization within the Nonrelativistic QCD Framework journal March 2015
Comment on Hadronic Production of Psions journal May 1976
Color-Octet Fragmentation and the ψ ′ Surplus at the Fermilab Tevatron journal April 1995
QCD Predictions for Charm and Bottom Quark Production at RHIC journal September 2005
Heavy quarkonium: progress, puzzles, and opportunities journal February 2011
Measurement of J/Ψ production in pp collisions at $\sqrt{s}=7$ TeV journal May 2011
Measurement of ψ(2S) meson production in pp collisions at $\sqrt{s}=7\ \mbox{TeV}$ journal August 2012

Cited By (8)

Heavy flavor azimuthal correlations in cold nuclear matter journal September 2018
Measurements of the transverse-momentum-dependent cross sections of J / ψ production at mid-rapidity in proton + proton collisions at s = 510 and 500 GeV with the STAR detector journal September 2019
New factorization theory for heavy quarkonium production and decay journal November 2019
Diffractive quarkonium photoproduction in p p and p A collisions at the LHC: Predictions of the resolved Pomeron model for the Run 2 energies journal October 2017
Event engineering studies for heavy flavor production and hadronization in high multiplicity hadron-hadron and hadron-nucleus collisions journal October 2018
Photoproduction of J / ψ with forward hadron tagging in hadronic collisions journal June 2019
New factorization theory for heavy quarkonium production and decay text January 2017
Diffractive quarkonium photoproduction in $pp$ and $pA$ collisions at the LHC: Predictions of the Resolved Pomeron model for the Run 2 energies text January 2017

Similar Records

Quarkonium Production and Polarization in an Improved Color Evaporation Model
Journal Article · Mon Jan 21 23:00:00 EST 2019 · Nuclear Physics. A · OSTI ID:1513116
Polarized heavy quarkonium production in the color evaporation model
Journal Article · Fri Apr 14 00:00:00 EDT 2017 · Physical Review D · OSTI ID:1366952
Signatures of color-octet quarkonium production
Conference · Wed May 01 00:00:00 EDT 1996 · OSTI ID:270832

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
exotic baryons
exotic mesons
quark-gluon plasma