Title

Search for electroweak penguin decay bottom quark to s quark lepton+ lepton-

Date of Award

1997

Degree Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Physics

Advisor(s)

Tomasz Skwarnicki

Keywords

flavor changing, bottom quark, strange quark, neutral current

Subject Categories

Physics

Abstract

Using data taken with the CLEO II detector at the Cornell Electron Storage Ring (CESR), we have searched for the effective Flavor Changing Neutral Current (FCNC) decays $b\to sl\sp+l\sp-$ in an inclusive way. We obtain upper limits on the branching ratio ${\cal B}(b\to se\sp+e\sp-)<5.7\times10\sp{-5},\ {\cal B}(b\to s\mu\sp+\mu\sp-)<5.6\times10\sp{-5}$ and ${\cal B}(b\to se\sp{\pm}\mu\sp{\mp})<2.2\times10\sp{-5}$ at 90% C.L.

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