Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV

The CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton–lead (pPb) collisions at a nucleon–nucleon center-of-mass energy of √sNN = 5.02 TeV, as well as results from charm quark jets in proton–proton (pp) collisions at √s =...

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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: Elsevier BV 2017
Subjects:
Online Access:http://irep.iium.edu.my/63041/
http://irep.iium.edu.my/63041/1/63041_Measurements%20of%20the%20charm%20jet%20cross%20section_article.pdf
http://irep.iium.edu.my/63041/2/63041_Measurements%20of%20the%20charm%20jet%20cross%20section_scopus.pdf
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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.
building IIUM Repository
collection Online Access
description The CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton–lead (pPb) collisions at a nucleon–nucleon center-of-mass energy of √sNN = 5.02 TeV, as well as results from charm quark jets in proton–proton (pp) collisions at √s = 2.76 and 5.02 TeV. By comparing the yields of the pPb and pp collision systems at the same energy, a nuclear modification factor for charm jets from 55 to 400 GeV/c in pPb collisions at √sNN = 5.02 TeV of RpA = 0.92 ± 0.07 (stat)± 0.11 (syst) is obtained. This is consistent with an absence of final-state energy loss for charm quarks in pPb collisions. In addition, the fraction of jets coming from charm quarks is found to be consistent with that predicted by pythia 6 for pp collisions at √s = 2.76 and 5.02 TeV, and is independent of the jet transverse momentum from 55 to 400 GeV/c.
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publishDate 2017
publisher Elsevier BV
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spelling iium-630412018-06-21T02:55:07Z http://irep.iium.edu.my/63041/ Measurements of the charm jet cross section and nuclear modification factor in pPb 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 CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton–lead (pPb) collisions at a nucleon–nucleon center-of-mass energy of √sNN = 5.02 TeV, as well as results from charm quark jets in proton–proton (pp) collisions at √s = 2.76 and 5.02 TeV. By comparing the yields of the pPb and pp collision systems at the same energy, a nuclear modification factor for charm jets from 55 to 400 GeV/c in pPb collisions at √sNN = 5.02 TeV of RpA = 0.92 ± 0.07 (stat)± 0.11 (syst) is obtained. This is consistent with an absence of final-state energy loss for charm quarks in pPb collisions. In addition, the fraction of jets coming from charm quarks is found to be consistent with that predicted by pythia 6 for pp collisions at √s = 2.76 and 5.02 TeV, and is independent of the jet transverse momentum from 55 to 400 GeV/c. Elsevier BV 2017-09-10 Article PeerReviewed application/pdf en http://irep.iium.edu.my/63041/1/63041_Measurements%20of%20the%20charm%20jet%20cross%20section_article.pdf application/pdf en http://irep.iium.edu.my/63041/2/63041_Measurements%20of%20the%20charm%20jet%20cross%20section_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Bergauer, Thomas and Md. Ali, Mohd. Adli (2017) Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 772. pp. 306-329. ISSN 0370-2693 https://ac.els-cdn.com/S0370269317305294/1-s2.0-S0370269317305294-main.pdf?_tid=f963c02c-8822-4d8d-b79b-aaaea1b3d670&acdnat=1521951723_4d67c1903ff9672b5e400eabefeacf1c 10.1016/j.physletb.2017.06.053
spellingShingle Q Science (General)
QC Physics
Sirunyan, A. M.
Tumasyan, A. R.
Adam, Wolfgang
Asilar, Ece
Bergauer, Thomas
Md. Ali, Mohd. Adli
Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV
title Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV
title_full Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV
title_fullStr Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV
title_full_unstemmed Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV
title_short Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sNN=5.02 TeV
title_sort measurements of the charm jet cross section and nuclear modification factor in ppb collisions at snn=5.02 tev
topic Q Science (General)
QC Physics
url http://irep.iium.edu.my/63041/
http://irep.iium.edu.my/63041/
http://irep.iium.edu.my/63041/
http://irep.iium.edu.my/63041/1/63041_Measurements%20of%20the%20charm%20jet%20cross%20section_article.pdf
http://irep.iium.edu.my/63041/2/63041_Measurements%20of%20the%20charm%20jet%20cross%20section_scopus.pdf