Measurement of branching fractions and rate asymmetries in the rare decays B→K [superscript (*)]ℓ[superscript +]ℓ[superscript -]
Name
Lees-2012-Measurement of branching fractions and rate asymmetries in the rare decays.pdf
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Author(s)
Dujmic, Denis
Sciolla, Gabriella
Cowan, Ray F
Date Issued
August 2012
Journal
Physical Review D
Publisher
American Physical Society
Citation
Lees, J. et al. “Measurement of Branching Fractions and Rate Asymmetries in the Rare Decays B→[superscript (*)]ℓ[superscript +]ℓ[superscript -].” Physical Review D 86.3 (2012). © 2012 American Physical Society
Version
Final published version
Abstract
In a sample of 471×10[superscript 6] BB̅ events collected with the BABAR detector at the PEP-II e[superscript +]e[superscript -] collider we study the rare decays B→K[superscript (*)ℓ+ℓ-], where [superscript ℓ+ℓ-] is either e[superscript +]e[superscript -] or μ[superscript +]μ[superscript -]. We report results on partial branching fractions and isospin asymmetries in seven bins of dilepton mass-squared. We further present CP and lepton-flavor asymmetries for dilepton masses below and above the J/ψ resonance. We find no evidence for CP or lepton-flavor violation. The partial branching fractions and isospin asymmetries are consistent with the Standard Model predictions and with results from other experiments.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.86.032012
