Résumé
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.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 517-541 |
| Nombre de pages | 25 |
| journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 781 |
| Les DOIs | |
| état | Publié - 10 juin 2018 |
| Modification externe | Oui |
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