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Angular analysis of the decay B0 → K⁎0μ+μ− from pp collisions at √s=8 TeV
Journal article   Open access   Peer reviewed

Angular analysis of the decay B0 → K⁎0μ+μ− from pp collisions at √s=8 TeV

Vardan Khachatryan and CMS Collaboration
Physics letters. B, Vol.753, pp.424-448
02/10/2016
DOI: 10.1016/j.physletb.2015.12.020
url
https://doi.org/10.1016/j.physletb.2015.12.020View
Published (Version of record) Open Access

Abstract

The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ−B0→K⁎(892)0μ+μ− are studied using data corresponding to an integrated luminosity of 20.5 fb−1 collected with the CMS detector at the LHC in pp collisions at View the MathML sources=8 TeV. From 1430 signal decays, the forward–backward asymmetry of the muons, the K⁎(892)0K⁎(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the dimuon invariant mass squared. The measurements are among the most precise to date and are in good agreement with standard model predictions.
High Energy Physics Physics B0 decays Experiment

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