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Measurement of ψ(2S) nuclear modification at backward and forward rapidity in p+p, p+Al, and p+Au collisions at √s.sub.NN./sub.=200 GeV
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SYSNO ASEP 0566525 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS 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 Author(s) Acharya, U.A. (US)
Aidala, C. (US)
Akiba, Y. (JP)
Vrba, Václav (FZU-D) RID, ORCIDNumber of authors 313 Article number 064912 Source Title Physical Review C. - : American Physical Society - ISSN 2469-9985
Roč. 105, č. 6 (2022)Number of pages 15 s. Language eng - English Country US - United States Keywords suppression ; shadowing ; J/ψ(3100) ; CERN LHC Coll Subject RIV BF - Elementary Particles and High Energy Physics OECD category Particles and field physics Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000832507500002 EID SCOPUS 85134063686 DOI 10.1103/PhysRevC.105.064912 Annotation 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. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1103/PhysRevC.105.064912
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