Abstract
J/ψ suppression has long been considered a sensitive signature of the formation of the Quark-Gluon Plasma (QGP) in relativistic heavy-ion collisions. In this letter, we present the first measurement of inclusive J/ψ production at mid-rapidity through the dimuon decay channel in Au+Au collisions at sNN=200 GeV with the STAR experiment. These measurements became possible after the installation of the Muon Telescope Detector was completed in 2014. The J/ψ yields are measured in a wide transverse momentum (pT) range of 0.15 GeV/c to 12 GeV/c from central to peripheral collisions. They extend the kinematic reach of previous measurements at RHIC with improved precision. In the 0-10% most central collisions, the J/ψ yield is suppressed by a factor of approximately 3 for pT>5 GeV/c relative to that in p+p collisions scaled by the number of binary nucleon-nucleon collisions. The J/ψ nuclear modification factor displays little dependence on pT in all centrality bins. Model calculations can qualitatively describe the data, providing further evidence for the color-screening effect experienced by J/ψ mesons in the QGP.
| Original language | English (US) |
|---|---|
| Article number | 134917 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 797 |
| DOIs | |
| State | Published - Oct 10 2019 |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
Cite this
Measurement of inclusive J/ψ suppression in Au+Au collisions at sNN=200 GeV through the dimuon channel at STAR. / STAR Collaboration.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 797, 134917, 10.10.2019.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Measurement of inclusive J/ψ suppression in Au+Au collisions at sNN=200 GeV through the dimuon channel at STAR
AU - STAR Collaboration
AU - Adam, J.
AU - Adamczyk, L.
AU - Adams, J. R.
AU - Adkins, J. K.
AU - Agakishiev, G.
AU - Aggarwal, M. M.
AU - Ahammed, Z.
AU - Alekseev, I.
AU - Anderson, D. M.
AU - Aoyama, R.
AU - Aparin, A.
AU - Arkhipkin, D.
AU - Aschenauer, E. C.
AU - Ashraf, M. U.
AU - Atetalla, F.
AU - Attri, A.
AU - Averichev, G. S.
AU - Bairathi, V.
AU - Barish, K.
AU - Bassill, A. J.
AU - Behera, A.
AU - Bellwied, R.
AU - Bhasin, A.
AU - Bhati, A. K.
AU - Bielcik, J.
AU - Bielcikova, J.
AU - Bland, L. C.
AU - Bordyuzhin, I. G.
AU - Brandenburg, J. D.
AU - Brandin, A. V.
AU - Bryslawskyj, J.
AU - Bunzarov, I.
AU - Butterworth, J.
AU - Caines, H.
AU - Calderón de la Barca Sánchez, M.
AU - Cebra, D.
AU - Chakaberia, I.
AU - Chaloupka, P.
AU - Chan, B. K.
AU - Chang, F. H.
AU - Chang, Z.
AU - Chankova-Bunzarova, N.
AU - Chatterjee, A.
AU - Chattopadhyay, S.
AU - Chen, J. H.
AU - Chen, X.
AU - Cheng, J.
AU - Cherney, M.
AU - Christie, W.
AU - Seger, J.
PY - 2019/10/10
Y1 - 2019/10/10
N2 - J/ψ suppression has long been considered a sensitive signature of the formation of the Quark-Gluon Plasma (QGP) in relativistic heavy-ion collisions. In this letter, we present the first measurement of inclusive J/ψ production at mid-rapidity through the dimuon decay channel in Au+Au collisions at sNN=200 GeV with the STAR experiment. These measurements became possible after the installation of the Muon Telescope Detector was completed in 2014. The J/ψ yields are measured in a wide transverse momentum (pT) range of 0.15 GeV/c to 12 GeV/c from central to peripheral collisions. They extend the kinematic reach of previous measurements at RHIC with improved precision. In the 0-10% most central collisions, the J/ψ yield is suppressed by a factor of approximately 3 for pT>5 GeV/c relative to that in p+p collisions scaled by the number of binary nucleon-nucleon collisions. The J/ψ nuclear modification factor displays little dependence on pT in all centrality bins. Model calculations can qualitatively describe the data, providing further evidence for the color-screening effect experienced by J/ψ mesons in the QGP.
AB - J/ψ suppression has long been considered a sensitive signature of the formation of the Quark-Gluon Plasma (QGP) in relativistic heavy-ion collisions. In this letter, we present the first measurement of inclusive J/ψ production at mid-rapidity through the dimuon decay channel in Au+Au collisions at sNN=200 GeV with the STAR experiment. These measurements became possible after the installation of the Muon Telescope Detector was completed in 2014. The J/ψ yields are measured in a wide transverse momentum (pT) range of 0.15 GeV/c to 12 GeV/c from central to peripheral collisions. They extend the kinematic reach of previous measurements at RHIC with improved precision. In the 0-10% most central collisions, the J/ψ yield is suppressed by a factor of approximately 3 for pT>5 GeV/c relative to that in p+p collisions scaled by the number of binary nucleon-nucleon collisions. The J/ψ nuclear modification factor displays little dependence on pT in all centrality bins. Model calculations can qualitatively describe the data, providing further evidence for the color-screening effect experienced by J/ψ mesons in the QGP.
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U2 - 10.1016/j.physletb.2019.134917
DO - 10.1016/j.physletb.2019.134917
M3 - Article
AN - SCOPUS:85072158488
VL - 797
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
M1 - 134917
ER -