# Angular analysis of the decay B + → K ∗(892) + μ + μ − in proton-proton collisions at √s = 8 TeV

CMS Collaboration, Freya Blekman, Emil Sørensen Bols, Simranjit Singh Chhibra, Jorgen D'Hondt, Jarne Theo De Clercq, Denys Lontkovskyi, Steven Lowette, Ivan Marchesini, Seth Moortgat, Alexander Morton, Denise Müller, Quentin Python, Stefaan Tavernier, Walter Van Doninck, Petra Van Mulders

Research output: Contribution to journalArticle

3 Citations (Scopus)

## Abstract

Angular distributions of the decay B$^+$ $\to$ K$^*$(892)$^+\mu^+\mu^-$ are studied using events collected with the CMS detector in $\sqrt{s} =$ 8 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 20.0 fb$^{-1}$. The forward-backward asymmetry of the muons and the longitudinal polarization of the K$^*$(892)$^+$ meson are determined as a function of the square of the dimuon invariant mass. These are the first results from this exclusive decay mode and are in agreement with a standard model prediction.
Original language English 124 35 JHEP 2021 4 https://doi.org/10.1007/JHEP04(2021)124 Published - 14 Apr 2021

### Bibliographical note

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/BPH-15-009 (CMS Public Pages)

• hep-ex

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• ### SRP8: Strategic Research Programme: High-Energy Physics at the VUB

1/11/1231/10/22

Project: Fundamental