Observation of B_s to phi gamma and Search for B_s to gamma gamma Decays at Belle

Details Observation of B_s to phi gamma and Search for B_s to gamma gamma Decays at Belle Observation of B_s to phi gamma and Search for B_s to gamma gamma Decays at Belle

2007-12-17

arxiv.org/abs/0712.2659v2

Phys.Rev.Lett.100:121801,2008

Physics

High Energy Physics

High Energy Physics - Experiment

5 pages, 3 figures, accepted by Physics Review Letters

Scientific paper

10.1103/PhysRevLett.100.121801

We search for the radiative penguin decays B_s to phi gamma and B_s to gamma
gamma in a 23.6 fb-1 data sample collected at the Upsilon(5S) resonance with
the Belle detector at the KEKB e+e- asymmetric-energy collider. We observe for
the first time a radiative penguin decay of the B_s meson in the B_s to phi
gamma mode. No significant B_s to gamma gamma signal is observed.

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