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Exclusive Measurements of b → sγ Transition Rate and Photon Energy Spectrum
(American Physical Society, 2012-10-17)
We use 429 fb⁻¹ of e⁺e⁻ collision data collected at the Υ(4S) resonance with the BABAR detector to measure the radiative transition rate of b → sγ with a sum of 38 exclusive final states. The inclusive branching fraction ...
Improved Limits on B⁰ Decays to Invisible (+γ) Final States
(American Physical Society, 2012-09-27)
We establish improved upper limits on branching fractions for B⁰ decays to final states where the decay products are purely invisible (i.e., no observable final state particles) and for final states where the only visible ...