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physics and astronomy

A measurement of the inclusive b → sγ branching ratio

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Volume 429, No. 1-2, Year 1998

The flavour changing neutral current decay b → sγ has been detected in hadronic Z decays collected by ALEPH at LEP. The signal is isolated in lifetime-tagged bb̄ events by the presence of a hard photon associated with a system of high momentum and high rapidity hadrons. The background processes are normalised from the data themselves. The inclusive branching ratio is measured to be (3.11±0.80stat±0.72syst)× 10-4, consistent with the Standard Model expectation via penguin processes. © 1998 Published by Elsevier Science B.V. All rights reserved.

Statistics
Citations: 355
Authors: 111
Affiliations: 41
Identifiers
Doi: 10.1016/S0370-2693(98)00404-3
ISSN: 03702693

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