Chatrchyan, S;
Khachatryan, V;
Sirunyan, AM;
Tumasyan, A;
Adam, W;
Bergauer, T;
Dragicevic, M;
... Weinberg, M; + view all
(2012)
Suppression of non-prompt J/ψ, prompt J/ψ, and Y(1S) in PbPb collisions at √s = 2.76 TeV.
Journal of High Energy Physics
, 2012
(5)
, Article 63. 10.1007/JHEP05(2012)063.
![[thumbnail of art%3A10.1007%2FJHEP05%282012%29063.pdf]](https://discovery.ucl.ac.uk/style/images/fileicons/application_pdf.png) Preview |
PDF
art%3A10.1007%2FJHEP05%282012%29063.pdf Download (1MB) |
Abstract
Yields of prompt and non-prompt J/ψ, as well as Y(1S) mesons, are measured by the CMS experiment via their μ μ decays in PbPb and pp collisions at √/s = 2.76 TeV for quarkonium rapidity |y| < 2.4. Differential cross sections and nuclear modification factors are reported as functions of y and transverse momentum pT, as well as collision centrality. For prompt J/ψ with relatively high pT (6.5 < pT < 30 GeV/c), a strong, centrality-dependent suppression is observed in PbPb collisions, compared to the yield in pp collisions scaled by the number of inelastic nucleon-nucleon collisions. In the same kinematic range, a suppression of non-prompt J/ψ, which is sensitive to the in-medium b-quark energy loss, is measured for the first time. Also the low-pT Y(1S) mesons are suppressed in PbPb collisions. © CERN.
| Type: | Article |
|---|---|
| Title: | Suppression of non-prompt J/ψ, prompt J/ψ, and Y(1S) in PbPb collisions at √s = 2.76 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/JHEP05(2012)063 |
| Publisher version: | http://dx.doi.org/10.1007/JHEP05(2012)063 |
| Language: | English |
| Additional information: | CC BY 4.0 This is an open-access article distributed under the terms of the Creative Commons Attribution License[http://creativecommons.org/licenses/by/4.0/], which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| 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/1349384 |
Archive Staff Only
 |
View Item |
