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Title: | Studies of Beauty Suppression via Nonprompt D0 Mesons in Pb-Pb Collisions at sNN =5.02 TeV |
Authors: | Brochero Cifuentes, J. A. ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Issue Date: | 9-Jul-2019 |
Publisher: | American Physical Society |
Citation: | Physical Review Letters 123(2): 022001 (2019) |
Abstract: | The transverse momentum spectra of D0 mesons from b hadron decays are measured at midrapidity (|y|<1) in pp and Pb-Pb collisions at a nucleon-nucleon center of mass energy of 5.02 TeV with the CMS detector at the LHC. The D0 mesons from b hadron decays are distinguished from prompt D0 mesons by their decay topologies. In Pb-Pb collisions, the B?D0 yield is found to be suppressed in the measured pT range from 2 to 100 GeV/c as compared to pp collisions. The suppression is weaker than that of prompt D0 mesons and charged hadrons for pT around 10 GeV/c. While theoretical calculations incorporating partonic energy loss in the quark-gluon plasma can successfully describe the measured B?D0 suppression at higher pT, the data show an indication of larger suppression than the model predictions in the range of 2<pT<5 GeV/c. |
Publisher version (URL): | http://dx.doi.org/10.1103/PhysRevLett.123.022001 |
URI: | http://hdl.handle.net/10261/213856 |
DOI: | http://dx.doi.org/10.1103/PhysRevLett.123.022001 |
Identifiers: | doi: 10.1103/PhysRevLett.123.022001 e-issn: 1079-7114 issn: 0031-9007 |
Appears in Collections: | (IFCA) Artículos |
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