Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Measurement of ψ(2S) nuclear modification at backward and forward rapidity in p+p, p+Al, and p+Au collisions at sNN =200 GeV

Acharya, U.A. ; Oskarsson, A. LU ; Silvermyr, D. LU orcid and Zou, L. (2022) In Physical Review C 105(6).
Abstract
Suppression of the J/ψ nuclear-modification factor has been seen as a trademark signature of final-state effects in large collision systems for decades. In small systems, the nuclear modification was attributed to cold-nuclear-matter effects until the observation of strong differential suppression of the ψ(2S) state in p+A and d+A collisions suggested the presence of final-state effects. Results of J/ψ and ψ(2S) measurements in the dimuon decay channel are presented here for p+p, p+Al, and p+Au collision systems at sNN=200GeV. The results are predominantly shown in the form of the nuclear-modification factor, RpA, the ratio of the ψ(2S) invariant yield per nucleon-nucleon collision in collisions of proton on target nucleus to that in p+p... (More)
Suppression of the J/ψ nuclear-modification factor has been seen as a trademark signature of final-state effects in large collision systems for decades. In small systems, the nuclear modification was attributed to cold-nuclear-matter effects until the observation of strong differential suppression of the ψ(2S) state in p+A and d+A collisions suggested the presence of final-state effects. Results of J/ψ and ψ(2S) measurements in the dimuon decay channel are presented here for p+p, p+Al, and p+Au collision systems at sNN=200GeV. The results are predominantly shown in the form of the nuclear-modification factor, RpA, the ratio of the ψ(2S) invariant yield per nucleon-nucleon collision in collisions of proton on target nucleus to that in p+p collisions. Measurements of the J/ψ and ψ(2S) nuclear-modification factor are compared with shadowing and transport-model predictions, as well as to complementary measurements at Large Hadron Collider energies. (Less)
Please use this url to cite or link to this publication:
author
; ; and
author collaboration
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C
volume
105
issue
6
article number
064912
publisher
American Physical Society
external identifiers
  • scopus:85134063686
ISSN
2469-9985
DOI
10.1103/PhysRevC.105.064912
language
English
LU publication?
yes
id
10b6d473-96ff-444c-b7a9-84ca70671f5c
date added to LUP
2022-09-14 08:53:52
date last changed
2023-04-09 20:45:02
@article{10b6d473-96ff-444c-b7a9-84ca70671f5c,
  abstract     = {{Suppression of the J/ψ nuclear-modification factor has been seen as a trademark signature of final-state effects in large collision systems for decades. In small systems, the nuclear modification was attributed to cold-nuclear-matter effects until the observation of strong differential suppression of the ψ(2S) state in p+A and d+A collisions suggested the presence of final-state effects. Results of J/ψ and ψ(2S) measurements in the dimuon decay channel are presented here for p+p, p+Al, and p+Au collision systems at sNN=200GeV. The results are predominantly shown in the form of the nuclear-modification factor, RpA, the ratio of the ψ(2S) invariant yield per nucleon-nucleon collision in collisions of proton on target nucleus to that in p+p collisions. Measurements of the J/ψ and ψ(2S) nuclear-modification factor are compared with shadowing and transport-model predictions, as well as to complementary measurements at Large Hadron Collider energies.}},
  author       = {{Acharya, U.A. and Oskarsson, A. and Silvermyr, D. and Zou, L.}},
  issn         = {{2469-9985}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C}},
  title        = {{Measurement of ψ(2S) nuclear modification at backward and forward rapidity in p+p, p+Al, and p+Au collisions at sNN =200 GeV}},
  url          = {{http://dx.doi.org/10.1103/PhysRevC.105.064912}},
  doi          = {{10.1103/PhysRevC.105.064912}},
  volume       = {{105}},
  year         = {{2022}},
}