Studies of beauty suppression via measurements of nonprompt D0 mesons in PbPb collisions at =5.02 TeV
Collaboration
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Abstract:
The transverse momentum spectra of mesons from b hadron decays are measured in pp and PbPb collisions at a nucleon-nucleon center of mass energy of 5.02 with the CMS detector at the LHC. The measurement is performed in the range of 2--100 and in the rapidity range of . The mesons from b hadron decays are distinguished from prompt mesons by their decay topologies. In PbPb collisions, the yield is found to be suppressed in most of the measured range compared to pp collisions. The suppression is weaker than that of prompt mesons and charged hadrons for around 10 . While theoretical calculations incorporating partonic energy loss in the quark gluon plasma can successfully describe the measured suppression at higher , the data show an indication of larger suppression than the model predictions in the range of .Note:
- Preliminary results
- Data
- hadron: decay
- transverse momentum: momentum spectrum
- quark gluon: plasma
- p p: scattering
- heavy quark: suppression
- nucleon nucleon: scattering
- CERN LHC Coll
- heavy quark: energy loss
- CMS
References(36)
Figures(3)
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