We report on a search for the rare decay (B) over bar (0)-> D(*0)gamma, which in the standard model is dominated by W-exchange. The analysis is based on a data sample comprising 87.8x10(6) B (B) over bar pairs collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. No significant signal is observed, and an upper limit on the branching fraction of 2.5x10(-5) at the 90% confidence level is obtained.

Search for the rare decay (B)over-bar(0)-> D-*0 gamma

BIANCHI, Fabrizio;GAMBA, Diego;
2005-01-01

Abstract

We report on a search for the rare decay (B) over bar (0)-> D(*0)gamma, which in the standard model is dominated by W-exchange. The analysis is based on a data sample comprising 87.8x10(6) B (B) over bar pairs collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. No significant signal is observed, and an upper limit on the branching fraction of 2.5x10(-5) at the 90% confidence level is obtained.
2005
72
051106
-
B. Aubert; R. Barate; D. Boutigny; F. Couderc; Y. Karyotakis; J. P. Lees; V. Poireau; V. Tisserand; A. Zghiche; E. Grauges; A. Palano; M. Pappagallo; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/49802
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