We report on a search for the rare decay B̄0→D*0γ, which in the standard model is dominated by W-exchange. The analysis is based on a data sample comprising 87.8×106 BB̄ 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 2.5×10-5 at the 90% confidence level is obtained.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2005). Search for the rare decay B̄0→D*0γ. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 72(5) [10.1103/PhysRevD.72.051106].

Search for the rare decay B̄0→D*0γ

CARPINELLI, Massimo;
2005

Abstract

We report on a search for the rare decay B̄0→D*0γ, which in the standard model is dominated by W-exchange. The analysis is based on a data sample comprising 87.8×106 BB̄ 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 2.5×10-5 at the 90% confidence level is obtained.
Articolo in rivista - Articolo scientifico
BABAR detector
English
B. Aubert et al. (BABAR Collaboration)
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2005). Search for the rare decay B̄0→D*0γ. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 72(5) [10.1103/PhysRevD.72.051106].
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