Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8186532 | Physics Letters B | 2018 | 25 Pages |
Abstract
Angular distributions of the decay B0âKâ0μ+μâ 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 20.5fbâ1. An angular analysis is performed to determine the P1 and P5â² parameters, where the P5â² 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 P5â² parameters are determined as a function of the dimuon invariant mass squared. The measurements are in agreement with predictions based on the standard model.
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