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

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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.
5 pages, 3 figures, accepted by Physics Review Letters

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High Energy Physics - Experiment

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http://salesiana.dossiersoluciones.com/handle/123456789/191845

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0712.2659
 http://arxiv.org/abs/0712.2659
 Phys.Rev.Lett.100:121801,2008
 doi:10.1103/PhysRevLett.100.121801

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arXiv