Journal article
Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at √sNN = 5.02 TeV
Physics letters B Nuclear, elementary particle and high-energy physics, Vol.772, pp.306-329
09/10/2017
DOI: 10.1016/j.physletb.2017.06.053
Appears in Diamond Open Access
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 =
5.02 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.
Details
- Title: Subtitle
- Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at √sNN = 5.02 TeV
- Creators
- CMS Collaboration (Institution)
- Contributors
- B. Bilki (Contributor) - University of IowaW Clarida (Contributor) - University of IowaKamuran Dilsiz (Contributor) - University of Iowa, Physics and AstronomyS. Durgut (Contributor) - University of IowaR. P. Gandrajula (Contributor) - University of IowaM. Haytmyradov (Contributor) - University of IowaV Khristenko (Contributor) - University of IowaJ-P Merlo (Contributor) - University of IowaH Mermerkaya (Contributor) - University of IowaAlexi Mestvirishvili (Contributor) - University of Iowa, Physics and AstronomyA. Moeller (Contributor) - University of IowaJane M Nachtman (Contributor) - University of Iowa, Physics and AstronomyHasan Ogul (Contributor) - University of Iowa, Physics and AstronomyYasar Onel (Contributor) - University of Iowa, Physics and AstronomyF. Ozok (Contributor) - University of IowaAldo Penzo (Contributor) - University of Iowa, Physics and AstronomyC. Snyder (Contributor) - University of IowaE. Tiras (Contributor) - University of IowaJames W Wetzel (Contributor) - University of Iowa, Physics and AstronomyKai Yi (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physics letters B Nuclear, elementary particle and high-energy physics, Vol.772, pp.306-329
- DOI
- 10.1016/j.physletb.2017.06.053
- ISSN
- 1873-2445
- Publisher
- Elsevier
- Grant note
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- Language
- English
- Date published
- 09/10/2017
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984439157402771
Metrics
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