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Title: Coherent J / ψ photoproduction in hadronic heavy-ion collisions

Journal Article · · Physical Review C
 [1];  [2];  [3];  [3];  [3];  [1];  [4];  [5];  [1];  [3]
  1. Univ. of Science and Technology of China, Hefei (China). Dept. of Modern Physics
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States); Shandong Univ., Jinan (China). Key Lab. of Particle Physics and Particle Irradiation (MOE)
  5. Shandong Univ., Jinan (China). Key Lab. of Particle Physics and Particle Irradiation (MOE)

Significant excesses of J/ yield at very low transverse momentum (pT < 0:3 GeV/c) were observed by the ALICE and STAR collaborations in peripheral hadronic A+A collisions. This is a Sign of coherent photoproduction of J/ψ in violent hadronic interactions. Theoretically, the photoproduction of J= in hadronic collisions raises questions about how spectator and non-spectator nucleons participate in the coherent reaction. We argue that the strong interactions in the overlapping region of incoming nuclei may disturb the coherent production, leaving room for different coupling assumptions. The destructive interference between photoproduction on ions moving in opposite directions also needs to be included. This letter presents calculations of J/ψ production from coherent photon-nucleus (γ+A → J/ψ +A) interactions in hadronic A+A collisions at RHIC and LHC energies with both nucleus and spectator coupling hypotheses. The integrated yield of coherent J/ψ as a function of centrality is found to be significantly different, especially towards central collisions, for different coupling scenarios. Differential distributions as a function of transverse momentum, azimuthal angle and rapidity in different centrality bins are also shown, and found to be more sensitive to the Pomeron coupling than to the photon coupling. Lastly, these predictions call for future experimental measurements to help better understand the coherent interaction in hadronic heavy-ion collisions.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0012704; AC-76SF00098
OSTI ID:
1434001
Alternate ID(s):
OSTI ID: 1433753
Report Number(s):
BNL-203544-2018-JAAM; PRVCAN; TRN: US1802348
Journal Information:
Physical Review C, Vol. 97, Issue 4; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 23 works
Citation information provided by
Web of Science

References (29)

STARlight: A Monte Carlo simulation program for ultra-peripheral collisions of relativistic ions journal March 2017
Energy dependence of J/ψ absorption in proton-nucleus collisions journal February 2009
Exclusive vector meson production in relativistic heavy ion collisions journal June 1999
Observation of Two-Source Interference in the Photoproduction Reaction AuAu AuAu ρ 0 journal March 2009
The quest for the quark–gluon plasma journal July 2007
The hadronic properties of the photon in high-energy interactions journal April 1978
Physics of Ultra-Peripheral Nuclear Collisions journal December 2005
ExperimentalJ/ψ hadronic production from 150 to 280 GeV/c journal June 1983
Two- and three-photon fusion in relativistic heavy-ion collisions journal June 2002
Ultra-peripheral collisions and hadronic structure journal November 2017
Partons and their applications at high energies journal August 1971
Improved version of the PHOBOS Glauber Monte Carlo journal September 2015
Coherent Vector-Meson Photoproduction with Nuclear Breakup in Relativistic Heavy-Ion Collisions journal June 2002
Photoproduction of Quarkonium in Proton-Proton and Nucleus-Nucleus Collisions journal April 2004
Lepton-pair production in ultraperipheral collisions at AFTER@LHC journal September 2015
Photoproduction of J / ψ mesons in peripheral and semicentral heavy ion collisions journal April 2016
Glauber Modeling in High-Energy Nuclear Collisions journal November 2007
Comparison ofJ/ψ-suppression in photon, hadron and nucleus-nucleus collisions: Where is the quark-gluon plasma? journal March 1992
ρ 0 photoproduction in ultraperipheral relativistic heavy ion collisions at s NN = 200 GeV journal March 2008
Excess of J/ψ yield at very low transverse momenta in Au+Au collisions at and U+U at with STAR journal January 2017
J/ΨN and Ψ′N total cross sections from photoproduction data: failure of vector dominance journal April 1998
J/ψ suppression by quark-gluon plasma formation journal October 1986
Interference in Exclusive Vector Meson Production in Heavy-Ion Collisions journal March 2000
Photon and gluon induced processes in relativistic heavy-ion collisions journal January 1997
Nuclear shadowing and ρ photoproduction journal May 1998
Methods for analyzing anisotropic flow in relativistic nuclear collisions journal September 1998
Energy dependence of J/ψ production in Au + Au collisions at s N N = 39 , 62.4  and  200 GeV journal August 2017
Predictions of the generalized Glauber model for the coherent ρ production at relativistic and ultrarelativistic energies journal March 2003
Hadronic production of J/ψ in the NA3 experiment journal May 1989

Cited By (1)