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Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at
CMS Collaboration
2017
Source PublicationPHYSICS LETTERS B
ISSN0370-2693
EISSN1873-2445
Volume772Pages:306-329
SubtypeArticle
AbstractThe 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 root sNN= 5.02 TeV, as well as results from charm quark jets in proton-proton (pp) collisions at root s=2.76and 5.02TeV. 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 400GeV/cin pPb collisions at root sNN=5.02 TeV of R-pA= 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 root s=2.76 and 5.02TeV, and is independent of the jet transverse momentum from 55 to 400 GeV/c. (C) 2017 The Author(s). Published by Elsevier B.V.
KeywordCMS Heavy ions Charm-tagging Heavy-flavor
DOI10.1016/j.physletb.2017.06.053
WOS KeywordQUARK-GLUON PLASMA ; PB COLLISIONS ; HEAVY QUARKS ; RECONSTRUCTION ; COLLABORATION ; PERSPECTIVE ; DETECTOR ; MATTER ; LHC ; TEV
Indexed BySCI ; SCOPUS ; ADS ; INSPIREHEP
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
WOS IDWOS:000411369700049
ADS Bibcode2017PhLB..772..306S
ADS URLhttps://ui.adsabs.harvard.edu/abs/2017PhLB..772..306S
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2017PhLB..772..306S/citations
AXRIV CODE1612
inspireid1507091
inspireURLhttps://inspirehep.net/record/1507091
Citation statistics
Cited Times:11 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/284431
Collection粒子天体物理中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
CMS Collaboration. Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at[J]. PHYSICS LETTERS B,2017,772:306-329.
APA CMS Collaboration.(2017).Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at.PHYSICS LETTERS B,772,306-329.
MLA CMS Collaboration."Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at".PHYSICS LETTERS B 772(2017):306-329.
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