Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at √sNN = 5.02 TeV

The cross sections for ϒ(1S), ϒ(2S), and ϒ(3S) production in lead–lead (PbPb) and proton–proton (pp) collisions at √sNN = 5.02 TeV have been measured using the CMS detector at the LHC. The nuclear modification factors, RAA, derived from the PbPb-to-pp ratio of yields for each state, are studied as...

Full description

Bibliographic Details
Main Authors:	Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Ambrogi, Federico, Asilar, Ece, Md. Ali, Mohd. Adli
Format:	Article
Language:	English English English
Published:	Elsevier B.V. 2019
Subjects:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/71724/ http://irep.iium.edu.my/71724/ http://irep.iium.edu.my/71724/ http://irep.iium.edu.my/71724/1/71724_Measurement%20of%20nuclear%20modification%20factors_article.pdf http://irep.iium.edu.my/71724/2/71724_Measurement%20of%20nuclear%20modification%20factors_wos.pdf http://irep.iium.edu.my/71724/3/71724_Measurement%20of%20nuclear%20modification%20factors_scopus.pdf

id	iium-71724
recordtype	eprints
spelling	iium-717242019-07-12T02:49:12Z http://irep.iium.edu.my/71724/ Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at √sNN = 5.02 TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Q Science (General) QC Physics The cross sections for ϒ(1S), ϒ(2S), and ϒ(3S) production in lead–lead (PbPb) and proton–proton (pp) collisions at √sNN = 5.02 TeV have been measured using the CMS detector at the LHC. The nuclear modification factors, RAA, derived from the PbPb-to-pp ratio of yields for each state, are studied as functions of meson rapidity and transverse momentum, as well as PbPb collision centrality. The yields of all three states are found to be significantly suppressed, and compatible with a sequential ordering of the suppression, RAA(ϒ(1S)) > RAA(ϒ(2S)) > RAA(ϒ(3S)). The suppression of ϒ(1S) is larger than that seen at √sNN = 2.76 TeV, although the two are compatible within uncertainties. The upper limit on the RAA of ϒ(3S) integrated over pT, rapidity and centrality is 0.096 at 95% confidence level, which is the strongest suppression observed for a quarkonium state in heavy ion collisions to date. Elsevier B.V. 2019-03-10 Article PeerReviewed application/pdf en http://irep.iium.edu.my/71724/1/71724_Measurement%20of%20nuclear%20modification%20factors_article.pdf application/pdf en http://irep.iium.edu.my/71724/2/71724_Measurement%20of%20nuclear%20modification%20factors_wos.pdf application/pdf en http://irep.iium.edu.my/71724/3/71724_Measurement%20of%20nuclear%20modification%20factors_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2019) Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at √sNN = 5.02 TeV. Physics Letters, Section B, 790. pp. 270-293. ISSN 0370-2693 https://reader.elsevier.com/reader/sd/pii/S037026931930022X?token=01CF503C15F35D7613DB2CDF61111B7238A72547FD78FC4F146DC56949598004338C878FC78B3277D7E8AFC64C7BBD72 10.1016/j.physletb.2019.01.006
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	Q Science (General) QC Physics
spellingShingle	Q Science (General) QC Physics Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at √sNN = 5.02 TeV
description	The cross sections for ϒ(1S), ϒ(2S), and ϒ(3S) production in lead–lead (PbPb) and proton–proton (pp) collisions at √sNN = 5.02 TeV have been measured using the CMS detector at the LHC. The nuclear modification factors, RAA, derived from the PbPb-to-pp ratio of yields for each state, are studied as functions of meson rapidity and transverse momentum, as well as PbPb collision centrality. The yields of all three states are found to be significantly suppressed, and compatible with a sequential ordering of the suppression, RAA(ϒ(1S)) > RAA(ϒ(2S)) > RAA(ϒ(3S)). The suppression of ϒ(1S) is larger than that seen at √sNN = 2.76 TeV, although the two are compatible within uncertainties. The upper limit on the RAA of ϒ(3S) integrated over pT, rapidity and centrality is 0.096 at 95% confidence level, which is the strongest suppression observed for a quarkonium state in heavy ion collisions to date.
format	Article
author	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli
author_facet	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli
author_sort	Sirunyan, A. M.
title	Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at √sNN = 5.02 TeV
title_short	Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at √sNN = 5.02 TeV
title_full	Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at √sNN = 5.02 TeV
title_fullStr	Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at √sNN = 5.02 TeV
title_full_unstemmed	Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at √sNN = 5.02 TeV
title_sort	measurement of nuclear modification factors of ϒ(1s), ϒ(2s), and ϒ(3s) mesons in pbpb collisions at √snn = 5.02 tev
publisher	Elsevier B.V.
publishDate	2019
url	http://irep.iium.edu.my/71724/ http://irep.iium.edu.my/71724/ http://irep.iium.edu.my/71724/ http://irep.iium.edu.my/71724/1/71724_Measurement%20of%20nuclear%20modification%20factors_article.pdf http://irep.iium.edu.my/71724/2/71724_Measurement%20of%20nuclear%20modification%20factors_wos.pdf http://irep.iium.edu.my/71724/3/71724_Measurement%20of%20nuclear%20modification%20factors_scopus.pdf
first_indexed	2023-09-18T21:41:42Z
last_indexed	2023-09-18T21:41:42Z
_version_	1777413183616581632

Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at √sNN = 5.02 TeV

Similar Items