Angular analysis and branching fraction measurement of the decay B0 → K∗0μ+μ−

CMS Collaboration

doi:10.1016/j.physletb.2013.10.017

Angular analysis and branching fraction measurement of the decay B⁰ → K^∗0μ⁺μ⁻

CMS Collaboration

Research output: Contribution to journal › Article › Research › peer-review

70 Citations (Scopus)

Abstract

The angular distributions and the differential branching fraction of the decay B⁰ → K^∗(892)⁰μ⁺μ⁻ are studied using a data sample corresponding to an integrated luminosity of 5.2fb⁻¹ collected with the CMS detector at the LHC in pp collisions at √s = 7 TeV. From more than 400 signal decays, the forward–backward asymmetry of the muons, the K^∗(892)⁰ longitudinal polarization fraction, and the differential branching fraction are determined as a function of the square of the dimuon invariant mass. The measurements are in good agreement with standard model predictions.

Original language	English
Pages (from-to)	77-100
Number of pages	24
Journal	Physics Letters B
Volume	727
DOIs	https://doi.org/10.1016/j.physletb.2013.10.017
Publication status	Published - 2013
Externally published	Yes

Keywords

CMS
Physics

Access to Document

10.1016/j.physletb.2013.10.017

229619380-oaFinal published version, 1.31 MB

Cite this

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title = "Angular analysis and branching fraction measurement of the decay B0 → K∗0μ+μ−",

abstract = "The angular distributions and the differential branching fraction of the decay B0 → K∗(892)0μ+μ− are studied using a data sample corresponding to an integrated luminosity of 5.2fb−1 collected with the CMS detector at the LHC in pp collisions at √s = 7 TeV. From more than 400 signal decays, the forward–backward asymmetry of the muons, the K∗(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the square of the dimuon invariant mass. The measurements are in good agreement with standard model predictions.",

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author = "J Nash and {CMS Collaboration}",

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AB - The angular distributions and the differential branching fraction of the decay B0 → K∗(892)0μ+μ− are studied using a data sample corresponding to an integrated luminosity of 5.2fb−1 collected with the CMS detector at the LHC in pp collisions at √s = 7 TeV. From more than 400 signal decays, the forward–backward asymmetry of the muons, the K∗(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the square of the dimuon invariant mass. The measurements are in good agreement with standard model predictions.

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DO - 10.1016/j.physletb.2013.10.017

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