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Title: J/{psi} production in Au+Au and Cu+Cu collisions at {radical}(s){sub NN}=200 GeV and the threshold model

Abstract

Using the quark gluon plasma (QGP) motivated threshold model, where all the J/{psi}'s are suppressed above a threshold density, we have analyzed the recent PHENIX data on the participant number dependence of the nuclear modification factor for J/{psi}'s, in Au+Au collisions, at RHIC energy, {radical}(s){sub NN}=200 GeV. Centrality dependence of midrapidity J/{psi} suppression in Au+Au collisions are well explained in the model for threshold density n{sub c}{approx_equal}3.6 fm{sup -2}. PHENIX data on J/{psi} suppression at forward rapidity data are not explained in the model. The analysis strongly supports deconfined matter formation in central Au+Au collisions at midrapidity. We have also analyzed the preliminary PHENIX data on J/{psi} suppression in Cu+Cu collisions. Cu+Cu data are not explained in the threshold model.

Authors:
 [1]
  1. Variable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700 064 (India)
Publication Date:
OSTI Identifier:
20995221
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevC.75.044902; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BROOKHAVEN RHIC; COLLISIONS; DENSITY; GEV RANGE 100-1000; INHIBITION; J PSI-3097 MESONS; PARTICLE RAPIDITY; QUARK MATTER

Citation Formats

Chaudhuri, A. K. J/{psi} production in Au+Au and Cu+Cu collisions at {radical}(s){sub NN}=200 GeV and the threshold model. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.044902.
Chaudhuri, A. K. J/{psi} production in Au+Au and Cu+Cu collisions at {radical}(s){sub NN}=200 GeV and the threshold model. United States. doi:10.1103/PHYSREVC.75.044902.
Chaudhuri, A. K. Sun . "J/{psi} production in Au+Au and Cu+Cu collisions at {radical}(s){sub NN}=200 GeV and the threshold model". United States. doi:10.1103/PHYSREVC.75.044902.
@article{osti_20995221,
title = {J/{psi} production in Au+Au and Cu+Cu collisions at {radical}(s){sub NN}=200 GeV and the threshold model},
author = {Chaudhuri, A. K.},
abstractNote = {Using the quark gluon plasma (QGP) motivated threshold model, where all the J/{psi}'s are suppressed above a threshold density, we have analyzed the recent PHENIX data on the participant number dependence of the nuclear modification factor for J/{psi}'s, in Au+Au collisions, at RHIC energy, {radical}(s){sub NN}=200 GeV. Centrality dependence of midrapidity J/{psi} suppression in Au+Au collisions are well explained in the model for threshold density n{sub c}{approx_equal}3.6 fm{sup -2}. PHENIX data on J/{psi} suppression at forward rapidity data are not explained in the model. The analysis strongly supports deconfined matter formation in central Au+Au collisions at midrapidity. We have also analyzed the preliminary PHENIX data on J/{psi} suppression in Cu+Cu collisions. Cu+Cu data are not explained in the threshold model.},
doi = {10.1103/PHYSREVC.75.044902},
journal = {Physical Review. C, Nuclear Physics},
number = 4,
volume = 75,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}