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http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3477| Title: | Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at √sNN=5.02TeV |
| Authors: | CMS Collaboration Sirunyan, A. M. CHAUHAN, S. DUBE, SOURABH HEGDE, V. KAPOOR, A. KOTHEKAR, K. PANDEY, S. RANE, A. SHARMA, SEEMA et al. Dept. of Physics |
| Keywords: | CMS Heavy ions Charm-tagging Heavy-flavor Creation of a new state Jet quenching 2017 |
| Issue Date: | Sep-2017 |
| Publisher: | Elsevier B.V. |
| Citation: | Physics Letters B, 772, 306-329. |
| 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. |
| URI: | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3477 https://doi.org/10.1016/j.physletb.2017.06.053 |
| ISSN: | 0370-2693 1873-2445 |
| Appears in Collections: | JOURNAL ARTICLES |
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