Measurement of angular parameters from the decay B0 → K*0μ+μ- in proton-proton collisions at √{ s } = 8TeV
Abstract
Angular distributions of the decay B0 →K*0μ+μ- are studied using a sample of proton-proton collisions at √{ s } = 8TeV collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 20.5fb-1. An angular analysis is performed to determine the P1 and P5‧ parameters, where the P5‧ parameter is of particular interest because of recent measurements that indicate a potential discrepancy with the standard model predictions. Based on a sample of 1397 signal events, the P1 and P5‧ parameters are determined as a function of the dimuon invariant mass squared. The measurements are in agreement with predictions based on the standard model.
- Publication:
-
Physics Letters B
- Pub Date:
- June 2018
- DOI:
- 10.1016/j.physletb.2018.04.030
- arXiv:
- arXiv:1710.02846
- Bibcode:
- 2018PhLB..781..517S
- Keywords:
-
- CMS;
- Physics;
- B<SUP>0</SUP> decays;
- High Energy Physics - Experiment
- E-Print:
- Replaced with the published version. Added the journal reference. All the figures and tables, including additional supplementary figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/BPH-15-008/ (CMS Public Pages)