Suppression of excited states relative to the ground state in Pb-Pb collisions at s NN=5.02 TeV

The relative yields of ϒ mesons produced in pp and Pb-Pb collisions at ffiffiffiffiffiffiffi sNN p ¼ 5.02 TeV and reconstructed via the dimuon decay channel are measured using data collected by the CMS experiment. Double ratios are formed by comparing the yields of the excited states, ϒð2SÞ and ϒ...

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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 2018
Subjects:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/65281/ http://irep.iium.edu.my/65281/ http://irep.iium.edu.my/65281/ http://irep.iium.edu.my/65281/1/65281_Suppression%20of%20Excited%20%CF%92%20States%20Relative%20_article.pdf http://irep.iium.edu.my/65281/2/65281_Suppression%20of%20Excited%20%CF%92%20States%20Relative%20_scopus.pdf

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spelling	iium-652812018-07-31T01:20:36Z http://irep.iium.edu.my/65281/ Suppression of excited states relative to the ground state in Pb-Pb collisions at s NN=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 yields of ϒ mesons produced in pp and Pb-Pb collisions at ffiffiffiffiffiffiffi sNN p ¼ 5.02 TeV and reconstructed via the dimuon decay channel are measured using data collected by the CMS experiment. Double ratios are formed by comparing the yields of the excited states, ϒð2SÞ and ϒð3SÞ, to the ground state, ϒð1SÞ, in both Pb-Pb and pp collisions at the same center-of-mass energy. The double ratios, ½ϒðnSÞ/ϒð1SÞPb−Pb/½ϒðnSÞ/ϒð1SÞpp, are measured to be 0.308 0.055ðstatÞ 0.019ðsystÞ for the ϒð2SÞ and less than 0.26 at 95% confidence level for the ϒð3SÞ. No significant ϒð3SÞ signal is found in the Pb-Pb data. The double ratios are studied as a function of collision centrality, as well as ϒ transverse momentum and rapidity. No significant dependencies are observed. American Physical Society 2018-04 Article PeerReviewed application/pdf en http://irep.iium.edu.my/65281/1/65281_Suppression%20of%20Excited%20%CF%92%20States%20Relative%20_article.pdf application/pdf en http://irep.iium.edu.my/65281/2/65281_Suppression%20of%20Excited%20%CF%92%20States%20Relative%20_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Bergauer, Thomas and Md. Ali, Mohd. Adli (2018) Suppression of excited states relative to the ground state in Pb-Pb collisions at s NN=5.02 TeV. Physical Review Letters, 120 (14). pp. 142301-1. ISSN 0031-9007 E-ISSN 1079-7114 https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.120.142301 10.1103/PhysRevLett.120.142301
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 Suppression of excited states relative to the ground state in Pb-Pb collisions at s NN=5.02 TeV
description	The relative yields of ϒ mesons produced in pp and Pb-Pb collisions at ffiffiffiffiffiffiffi sNN p ¼ 5.02 TeV and reconstructed via the dimuon decay channel are measured using data collected by the CMS experiment. Double ratios are formed by comparing the yields of the excited states, ϒð2SÞ and ϒð3SÞ, to the ground state, ϒð1SÞ, in both Pb-Pb and pp collisions at the same center-of-mass energy. The double ratios, ½ϒðnSÞ/ϒð1SÞPb−Pb/½ϒðnSÞ/ϒð1SÞpp, are measured to be 0.308 0.055ðstatÞ 0.019ðsystÞ for the ϒð2SÞ and less than 0.26 at 95% confidence level for the ϒð3SÞ. No significant ϒð3SÞ signal is found in the Pb-Pb data. The double ratios are studied as a function of collision centrality, as well as ϒ transverse momentum and rapidity. No significant dependencies are observed.
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	Suppression of excited states relative to the ground state in Pb-Pb collisions at s NN=5.02 TeV
title_short	Suppression of excited states relative to the ground state in Pb-Pb collisions at s NN=5.02 TeV
title_full	Suppression of excited states relative to the ground state in Pb-Pb collisions at s NN=5.02 TeV
title_fullStr	Suppression of excited states relative to the ground state in Pb-Pb collisions at s NN=5.02 TeV
title_full_unstemmed	Suppression of excited states relative to the ground state in Pb-Pb collisions at s NN=5.02 TeV
title_sort	suppression of excited states relative to the ground state in pb-pb collisions at s nn=5.02 tev
publisher	American Physical Society
publishDate	2018
url	http://irep.iium.edu.my/65281/ http://irep.iium.edu.my/65281/ http://irep.iium.edu.my/65281/ http://irep.iium.edu.my/65281/1/65281_Suppression%20of%20Excited%20%CF%92%20States%20Relative%20_article.pdf http://irep.iium.edu.my/65281/2/65281_Suppression%20of%20Excited%20%CF%92%20States%20Relative%20_scopus.pdf
first_indexed	2023-09-18T21:32:38Z
last_indexed	2023-09-18T21:32:38Z
_version_	1777412613263589376

Suppression of excited states relative to the ground state in Pb-Pb collisions at s NN=5.02 TeV

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