Relative modification of prompt ψ (2S) and J /ψ yields from pp to PbPb collisions at sNN =5.02 TeV

Relative modification of prompt ψ (2S) and J /ψ yields from pp to PbPb collisions at sNN =5.02 TeV

The relative modification of the prompt ψ(2S) and J/ψ yields from pp to PbPb collisions, at the center-of-mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on pp and PbPb data samples collected by the CMS experiment at the LHC in 2015, corresponding to integrated luminosi...

Full description

Bibliographic Details
Main Authors: Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Asilar, Ece, Bergauer, Thomas, Md. Ali, Mohd. Adli
Format: Article
Language:English
English
Published: American Physical Society 2017
Subjects:
Q Science (General)
QC Physics
Online Access:http://irep.iium.edu.my/63051/
http://irep.iium.edu.my/63051/
http://irep.iium.edu.my/63051/
http://irep.iium.edu.my/63051/1/63051_Relative%20Modification%20of%20Prompt%20%CF%88%20%282S%29_article.pdf
http://irep.iium.edu.my/63051/2/63051_Relative%20Modification%20of%20Prompt%20%CF%88%20%282S%29_scopus.pdf
id iium-63051
recordtype eprints
spelling iium-630512018-06-21T03:02:53Z http://irep.iium.edu.my/63051/ Relative modification of prompt ψ (2S) and J /ψ yields from pp to PbPb collisions at sNN =5.02 TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli Q Science (General) QC Physics The relative modification of the prompt ψ(2S) and J/ψ yields from pp to PbPb collisions, at the center-of-mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on pp and PbPb data samples collected by the CMS experiment at the LHC in 2015, corresponding to integrated luminosities of 28.0 pb-1 and 464 μb-1, respectively. The double ratio of measured yields of prompt charmonia reconstructed through their decays into muon pairs, (Nψ(2S)/NJ/ψ)PbPb/(Nψ(2S)/NJ/ψ)pp, is determined as a function of PbPb collision centrality and charmonium transverse momentum pT, in two kinematic intervals: |y|<1.6 covering 6.5<pT<30 GeV/c and 1.6<|y|<2.4 covering 3<pT<30 GeV/c. The centrality-integrated double ratios are 0.36±0.08(stat)±0.05(syst) in the first interval and 0.24±0.22(stat)±0.09(syst) in the second. The double ratio is lower than unity in all the measured bins, suggesting that the ψ(2S) yield is more suppressed than the J/ψ yield in the explored phase space. American Physical Society 2017-04 Article PeerReviewed application/pdf en http://irep.iium.edu.my/63051/1/63051_Relative%20Modification%20of%20Prompt%20%CF%88%20%282S%29_article.pdf application/pdf en http://irep.iium.edu.my/63051/2/63051_Relative%20Modification%20of%20Prompt%20%CF%88%20%282S%29_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Bergauer, Thomas and Md. Ali, Mohd. Adli (2017) Relative modification of prompt ψ (2S) and J /ψ yields from pp to PbPb collisions at sNN =5.02 TeV. Physical Review Letters, 118 (16). pp. 162301-1. ISSN 0031-9007 E-ISSN 1079-7114 https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.118.162301 10.1103/PhysRevLett.118.162301
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
English
topic Q Science (General)
QC Physics
spellingShingle Q Science (General)
QC Physics
Sirunyan, A. M.
Tumasyan, A. R.
Adam, Wolfgang
Asilar, Ece
Bergauer, Thomas
Md. Ali, Mohd. Adli
Relative modification of prompt ψ (2S) and J /ψ yields from pp to PbPb collisions at sNN =5.02 TeV
description The relative modification of the prompt ψ(2S) and J/ψ yields from pp to PbPb collisions, at the center-of-mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on pp and PbPb data samples collected by the CMS experiment at the LHC in 2015, corresponding to integrated luminosities of 28.0 pb-1 and 464 μb-1, respectively. The double ratio of measured yields of prompt charmonia reconstructed through their decays into muon pairs, (Nψ(2S)/NJ/ψ)PbPb/(Nψ(2S)/NJ/ψ)pp, is determined as a function of PbPb collision centrality and charmonium transverse momentum pT, in two kinematic intervals: |y|<1.6 covering 6.5<pT<30 GeV/c and 1.6<|y|<2.4 covering 3<pT<30 GeV/c. The centrality-integrated double ratios are 0.36±0.08(stat)±0.05(syst) in the first interval and 0.24±0.22(stat)±0.09(syst) in the second. The double ratio is lower than unity in all the measured bins, suggesting that the ψ(2S) yield is more suppressed than the J/ψ yield in the explored phase space.
format Article
author Sirunyan, A. M.
Tumasyan, A. R.
Adam, Wolfgang
Asilar, Ece
Bergauer, Thomas
Md. Ali, Mohd. Adli
author_facet Sirunyan, A. M.
Tumasyan, A. R.
Adam, Wolfgang
Asilar, Ece
Bergauer, Thomas
Md. Ali, Mohd. Adli
author_sort Sirunyan, A. M.
title Relative modification of prompt ψ (2S) and J /ψ yields from pp to PbPb collisions at sNN =5.02 TeV
title_short Relative modification of prompt ψ (2S) and J /ψ yields from pp to PbPb collisions at sNN =5.02 TeV
title_full Relative modification of prompt ψ (2S) and J /ψ yields from pp to PbPb collisions at sNN =5.02 TeV
title_fullStr Relative modification of prompt ψ (2S) and J /ψ yields from pp to PbPb collisions at sNN =5.02 TeV
title_full_unstemmed Relative modification of prompt ψ (2S) and J /ψ yields from pp to PbPb collisions at sNN =5.02 TeV
title_sort relative modification of prompt ψ (2s) and j /ψ yields from pp to pbpb collisions at snn =5.02 tev
publisher American Physical Society
publishDate 2017
url http://irep.iium.edu.my/63051/
http://irep.iium.edu.my/63051/
http://irep.iium.edu.my/63051/
http://irep.iium.edu.my/63051/1/63051_Relative%20Modification%20of%20Prompt%20%CF%88%20%282S%29_article.pdf
http://irep.iium.edu.my/63051/2/63051_Relative%20Modification%20of%20Prompt%20%CF%88%20%282S%29_scopus.pdf
first_indexed 2023-09-18T21:29:24Z
last_indexed 2023-09-18T21:29:24Z
_version_ 1777412409596575744

Similar Items