Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at root sNN=5.02TeV
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Published version
Author(s)
Type
Journal Article
Abstract
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=5.02TeV, as well as results from charm quark jets in proton–proton (pp) collisions at s=2.76 and 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 400 GeV/c in pPb collisions at sNN=5.02TeV 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 5.02TeV, and is independent of the jet transverse momentum from 55 to 400 GeV/c.
Date Issued
2017-06-23
Date Acceptance
2017-06-19
Citation
PHYSICS LETTERS B, 2017, 772, pp.306-329
ISSN
0370-2693
Publisher
ELSEVIER SCIENCE BV
Start Page
306
End Page
329
Journal / Book Title
PHYSICS LETTERS B
Volume
772
Copyright Statement
©
2017
The
Author(s).
Published
by
Elsevier
B.V.
This
is
an
open
access
article
under
the
CC
BY
license
(http://creativecommons.org/licenses/by/4.0/
).
2017
The
Author(s).
Published
by
Elsevier
B.V.
This
is
an
open
access
article
under
the
CC
BY
license
(http://creativecommons.org/licenses/by/4.0/
).
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000411369700049&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Nuclear
Physics, Particles & Fields
Physics
CMS
Heavy ions
Charm-tagging
Heavy-flavor
QUARK-GLUON PLASMA
PB COLLISIONS
HEAVY QUARKS
RECONSTRUCTION
COLLABORATION
PERSPECTIVE
DETECTOR
MATTER
LHC
TEV
0202 Atomic, Molecular, Nuclear, Particle And Plasma Physics
Nuclear & Particles Physics
Publication Status
Published