Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at sNN =5.02 TeV

The pseudorapidity distributions of dijets as functions of their average transverse momentum (pave T ) are measured in proton-lead (pPb) and proton-proton (pp) collisions. The data samples were collected by the CMS experiment at the CERN LHC, at a nucleon-nucleon center-of-mass energy of 5.02 TeV...

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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:	American Physical Society 2018
Subjects:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/66765/ http://irep.iium.edu.my/66765/ http://irep.iium.edu.my/66765/ http://irep.iium.edu.my/66765/1/66765_Constraining%20Gluon%20Distributions%20in%20Nuclei%20Using_article.pdf http://irep.iium.edu.my/66765/2/66765_Constraining%20Gluon%20Distributions%20in%20Nuclei%20Using_scopus.pdf http://irep.iium.edu.my/66765/13/66765_Constraining%20Gluon%20Distributions%20in%20Nuclei%20Using%20Dijets%20in%20Proton-Proton%20and%20Proton-Lead%20Collisions%20at%20sNN%20%3D5.02%20TeV_WOS.pdf

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spelling	iium-667652019-01-24T02:23:06Z http://irep.iium.edu.my/66765/ Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead 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 pseudorapidity distributions of dijets as functions of their average transverse momentum (pave T ) are measured in proton-lead (pPb) and proton-proton (pp) collisions. The data samples were collected by the CMS experiment at the CERN LHC, at a nucleon-nucleon center-of-mass energy of 5.02 TeV. A significant modification of the pPb spectra with respect to the pp spectra is observed in all pave T intervals investigated. The ratios of the pPb and pp distributions are compared to next-to-leading order perturbative quantum chromodynamics calculations with unbound nucleon and nuclear parton distribution functions (PDFs). These results give the first evidence that the gluon PDF at large Bjorken x in lead ions is strongly suppressed with respect to the PDF in unbound nucleons. American Physical Society 2018-08-07 Article PeerReviewed application/pdf en http://irep.iium.edu.my/66765/1/66765_Constraining%20Gluon%20Distributions%20in%20Nuclei%20Using_article.pdf application/pdf en http://irep.iium.edu.my/66765/2/66765_Constraining%20Gluon%20Distributions%20in%20Nuclei%20Using_scopus.pdf application/pdf en http://irep.iium.edu.my/66765/13/66765_Constraining%20Gluon%20Distributions%20in%20Nuclei%20Using%20Dijets%20in%20Proton-Proton%20and%20Proton-Lead%20Collisions%20at%20sNN%20%3D5.02%20TeV_WOS.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at sNN =5.02 TeV. Physical Review Letters, 121 (6). 062002-1. ISSN 0031-9007 E-ISSN 1079-7114 https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.121.062002 10.1103/PhysRevLett.121.062002
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 Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at sNN =5.02 TeV
description	The pseudorapidity distributions of dijets as functions of their average transverse momentum (pave T ) are measured in proton-lead (pPb) and proton-proton (pp) collisions. The data samples were collected by the CMS experiment at the CERN LHC, at a nucleon-nucleon center-of-mass energy of 5.02 TeV. A significant modification of the pPb spectra with respect to the pp spectra is observed in all pave T intervals investigated. The ratios of the pPb and pp distributions are compared to next-to-leading order perturbative quantum chromodynamics calculations with unbound nucleon and nuclear parton distribution functions (PDFs). These results give the first evidence that the gluon PDF at large Bjorken x in lead ions is strongly suppressed with respect to the PDF in unbound nucleons.
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	Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at sNN =5.02 TeV
title_short	Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at sNN =5.02 TeV
title_full	Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at sNN =5.02 TeV
title_fullStr	Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at sNN =5.02 TeV
title_full_unstemmed	Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at sNN =5.02 TeV
title_sort	constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at snn =5.02 tev
publisher	American Physical Society
publishDate	2018
url	http://irep.iium.edu.my/66765/ http://irep.iium.edu.my/66765/ http://irep.iium.edu.my/66765/ http://irep.iium.edu.my/66765/1/66765_Constraining%20Gluon%20Distributions%20in%20Nuclei%20Using_article.pdf http://irep.iium.edu.my/66765/2/66765_Constraining%20Gluon%20Distributions%20in%20Nuclei%20Using_scopus.pdf http://irep.iium.edu.my/66765/13/66765_Constraining%20Gluon%20Distributions%20in%20Nuclei%20Using%20Dijets%20in%20Proton-Proton%20and%20Proton-Lead%20Collisions%20at%20sNN%20%3D5.02%20TeV_WOS.pdf
first_indexed	2023-09-18T21:34:50Z
last_indexed	2023-09-18T21:34:50Z
_version_	1777412750834663424

Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at sNN =5.02 TeV

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