Sirunyan, AM;
Tumasyan, A;
Adam, W;
Ambrogi, F;
Asilar, E;
Bergauer, T;
Brandstetter, J;
... Woods, N; + view all
(2019)
Studies of Beauty Suppression via Nonprompt D-0 Mesons in Pb-Pb Collisions at root s(NN)=5.02 TeV.
Physical Review Letters
, 123
, Article 022001. 10.1103/PhysRevLett.123.022001.
Preview |
Text
PhysRevLett.123.022001.pdf - Published Version Download (548kB) | Preview |
Abstract
The transverse momentum spectra of D 0 mesons from b hadron decays are measured at midrapidity ( | y | < 1 ) in p p and Pb-Pb collisions at a nucleon-nucleon center of mass energy of 5.02 TeV with the CMS detector at the LHC. The D 0 mesons from b hadron decays are distinguished from prompt D 0 mesons by their decay topologies. In Pb-Pb collisions, the B → D 0 yield is found to be suppressed in the measured p T range from 2 to 100 GeV / c as compared to p p collisions. The suppression is weaker than that of prompt D 0 mesons and charged hadrons for p T around 10 GeV / c . While theoretical calculations incorporating partonic energy loss in the quark-gluon plasma can successfully describe the measured B → D 0 suppression at higher p T , the data show an indication of larger suppression than the model predictions in the range of 2 < p T < 5 GeV / c .
| Type: | Article |
|---|---|
| Title: | Studies of Beauty Suppression via Nonprompt D-0 Mesons in Pb-Pb Collisions at root s(NN)=5.02 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.123.022001 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.123.022001 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Science & Technology, Physical Sciences, Physics, Multidisciplinary, Physics, LARGE TRANSVERSE-MOMENTA, QUARK-GLUON PLASMA, PERSPECTIVE, MATTER |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10089605 |
Archive Staff Only
 |
View Item |
