Chatrchyan, S;
Khachatryan, V;
Sirunyan, AM;
Tumasyan, A;
Adam, W;
Bergauer, T;
Dragicevic, M;
... CMS Collaboration, The; + view all
(2012)
Search for a light pseudoscalar Higgs boson in the dimuon decay channel in pp collisions at √s = 7 TeV.
Physical Review Letters
, 109
(12)
, Article 121801. 10.1103/PhysRevLett.109.121801.
![[thumbnail of 1366088.pdf]](https://discovery.ucl.ac.uk/style/images/fileicons/application_pdf.png) Preview |
PDF
1366088.pdf Download (460kB) |
Abstract
The dimuon invariant mass spectrum is searched in the range between 5.5 and 14 GeV for a light pseudoscalar Higgs boson a, predicted in a number of new physics models, including the next-to-minimal supersymmetric standard model. The data sample used in the search corresponds to an integrated luminosity of 1.3 fb(-1) collected in pp collisions at √s = 7 TeV with the CMS detector at the LHC. No excess is observed above the background predictions and upper limits are set on the cross section times branching fraction σ × B(pp→a→μ(+)μ(-)) in the range of 1.5-7.5 pb. These results improve on existing bounds on the abb coupling for m(a) < m(Υ(1S)) and are the first significant limits for m(a) > m(Υ(3S)). Constraints on the supersymmetric parameter space are presented in the context of the next-to-minimal model.
| Type: | Article |
|---|---|
| Title: | Search for a light pseudoscalar Higgs boson in the dimuon decay channel in pp collisions at √s = 7 TeV. |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.109.121801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.109.121801 |
| Language: | English |
| Additional information: | © 2012 CERN, for the CMS Collaboration |
| 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/1366088 |
Archive Staff Only
 |
View Item |
