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Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions ats root s(NN)=5.02 TeV

The almost hermetic coverage of the CMS detector is used to measure the distribution of transverse energy, ET, over 13.2 units of pseudorapidity, η, for pPb collisions at a center-of-mass energy per nucleon pair of √sNN = 5.02 TeV. The huge angular acceptance exploits the fact that the CASTOR calo...

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Main Authors:	Sirunyan, A. M., Tumasyan, A., Adam, Wolfgang, Ambrogi, Federico, Asilar, Ece, Md. Ali, Mohd. Adli
Format:	Article
Language:	English English English
Published:	American Physical Society 2019
Subjects:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/80162/19/80162_Centrality%20and%20pseudorapidity%20dependence%20of%20the%20transverse_article%20%28%20CMS%20project%29.pdf http://irep.iium.edu.my/80162/2/80162_Centrality%20and%20pseudorapidity%20dependence_scopus.pdf http://irep.iium.edu.my/80162/3/80162_Centrality%20and%20pseudorapidity%20dependence_wos.pdf http://irep.iium.edu.my/80162/ https://journals.aps.org/prc/pdf/10.1103/PhysRevC.100.024902
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spelling	my.iium.irep.801622020-08-12T03:37:25Z http://irep.iium.edu.my/80162/ Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions ats root s(NN)=5.02 TeV Sirunyan, A. M. Tumasyan, A. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Q Science (General) QC Physics The almost hermetic coverage of the CMS detector is used to measure the distribution of transverse energy, ET, over 13.2 units of pseudorapidity, η, for pPb collisions at a center-of-mass energy per nucleon pair of √sNN = 5.02 TeV. The huge angular acceptance exploits the fact that the CASTOR calorimeter at −6.6 <η< −5.2 is effectively present on both sides of the colliding system because of a switch in the proton-going and lead-going beam directions. This wide acceptance enables the study of correlations between well-separated angular regions and makes the measurement a particularly powerful test of event generators. For minimum bias pPb collisions the maximum value of dET/dη is 22 GeV, which implies an ET per participant nucleon pair comparable to that of peripheral PbPb collisions at √sNN = 2.76 TeV. The increase of dET/dη with centrality is much stronger for the lead-going side than for the proton-going side. The η dependence of dET/dη is sensitive to the η range in which the centrality variable is defined. Several modern generators are compared to these results but none is able to capture all aspects of the η and centrality dependence of the data and the correlations observed between different η regions American Physical Society 2019-08-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/80162/19/80162_Centrality%20and%20pseudorapidity%20dependence%20of%20the%20transverse_article%20%28%20CMS%20project%29.pdf application/pdf en http://irep.iium.edu.my/80162/2/80162_Centrality%20and%20pseudorapidity%20dependence_scopus.pdf application/pdf en http://irep.iium.edu.my/80162/3/80162_Centrality%20and%20pseudorapidity%20dependence_wos.pdf Sirunyan, A. M. and Tumasyan, A. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2019) Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions ats root s(NN)=5.02 TeV. Physical Review C, 100 (2). pp. 1-20. ISSN 2469-9985 E-ISSN 2469-9993 https://journals.aps.org/prc/pdf/10.1103/PhysRevC.100.024902 10.1103/PhysRevC.100.024902
institution	Universiti Islam Antarabangsa Malaysia
building	IIUM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	International Islamic University Malaysia
content_source	IIUM Repository (IREP)
url_provider	http://irep.iium.edu.my/
language	English English English
topic	Q Science (General) QC Physics
spellingShingle	Q Science (General) QC Physics Sirunyan, A. M. Tumasyan, A. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions ats root s(NN)=5.02 TeV
description	The almost hermetic coverage of the CMS detector is used to measure the distribution of transverse energy, ET, over 13.2 units of pseudorapidity, η, for pPb collisions at a center-of-mass energy per nucleon pair of √sNN = 5.02 TeV. The huge angular acceptance exploits the fact that the CASTOR calorimeter at −6.6 <η< −5.2 is effectively present on both sides of the colliding system because of a switch in the proton-going and lead-going beam directions. This wide acceptance enables the study of correlations between well-separated angular regions and makes the measurement a particularly powerful test of event generators. For minimum bias pPb collisions the maximum value of dET/dη is 22 GeV, which implies an ET per participant nucleon pair comparable to that of peripheral PbPb collisions at √sNN = 2.76 TeV. The increase of dET/dη with centrality is much stronger for the lead-going side than for the proton-going side. The η dependence of dET/dη is sensitive to the η range in which the centrality variable is defined. Several modern generators are compared to these results but none is able to capture all aspects of the η and centrality dependence of the data and the correlations observed between different η regions
format	Article
author	Sirunyan, A. M. Tumasyan, A. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli
author_facet	Sirunyan, A. M. Tumasyan, A. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli
author_sort	Sirunyan, A. M.
title	Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions ats root s(NN)=5.02 TeV
title_short	Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions ats root s(NN)=5.02 TeV
title_full	Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions ats root s(NN)=5.02 TeV
title_fullStr	Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions ats root s(NN)=5.02 TeV
title_full_unstemmed	Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions ats root s(NN)=5.02 TeV
title_sort	centrality and pseudorapidity dependence of the transverse energy density in ppb collisions ats root s(nn)=5.02 tev
publisher	American Physical Society
publishDate	2019
url	http://irep.iium.edu.my/80162/19/80162_Centrality%20and%20pseudorapidity%20dependence%20of%20the%20transverse_article%20%28%20CMS%20project%29.pdf http://irep.iium.edu.my/80162/2/80162_Centrality%20and%20pseudorapidity%20dependence_scopus.pdf http://irep.iium.edu.my/80162/3/80162_Centrality%20and%20pseudorapidity%20dependence_wos.pdf http://irep.iium.edu.my/80162/ https://journals.aps.org/prc/pdf/10.1103/PhysRevC.100.024902
_version_	1675327149725188096
score	13.211869

Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions ats root s(NN)=5.02 TeV

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