Search for new physics in rare B decays

A search for the decay B ± →K ± K ± π ∓ was performed using data collected by the OPAL detector at LEP. These decays are strongly suppressed in the Standard Model but could occur with a higher branching ratio in supersymmetric models, especially in those with R-parity violating couplings. No evidence for a signal was observed and a 90% confidence level upper limit of 1.29×10 −4 was set for the branching ratio.

Note:

15 pages, 4 figures, to be published in Phys. Letts. B Report-no: CERN-EP/99-179

electron positron: colliding beams
electron positron: annihilation
Z0: electroproduction
Z0: hadronic decay
bottom: pair production
B: rare decay
mass spectrum: (2K pi)
supersymmetry
R parity: violation
B: branching ratio

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Figures(0)

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