A search for the rare leptonic decay with data collected at the resonance by the BABAR experiment was carried out. The decay rate was sensitive to the product of the Cabibbo Kobayashi Maskawa matrix element (Vub and the B decay constant fb, which was propotional to the wave function for zero separation between the quarks. The data used in the analysis was collectd with BABAR detector at the PEP-II storage ring and the sample consisted of an integrity luminosity of 81.4 fb-1. The systematic uncertainty in the signal efficiency was evaluated which included the muon candidate selection and the reconstruction efficiency of the companion B.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2004). Search for the rare leptonic decay B+ → μ+vμ. PHYSICAL REVIEW LETTERS, 92(22), 1-7 [10.1103/PhysRevLett.92.221803].

Search for the rare leptonic decay B+ → μ+vμ

CARPINELLI, Massimo;
2004

Abstract

A search for the rare leptonic decay with data collected at the resonance by the BABAR experiment was carried out. The decay rate was sensitive to the product of the Cabibbo Kobayashi Maskawa matrix element (Vub and the B decay constant fb, which was propotional to the wave function for zero separation between the quarks. The data used in the analysis was collectd with BABAR detector at the PEP-II storage ring and the sample consisted of an integrity luminosity of 81.4 fb-1. The systematic uncertainty in the signal efficiency was evaluated which included the muon candidate selection and the reconstruction efficiency of the companion B.
Articolo in rivista - Articolo scientifico
Calorimetry; Data reduction; Extrapolation; Ionization; Kinematics; Magnetic fields; Mathematical models; Monte Carlo methods; Optimization; Parameter estimation; Probability; Resonance; Branching fractions; Charged tracks; Leptonic decays; Muons; High energy physics;
English
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7
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B. Aubert et al. (BABAR Collaboration)
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2004). Search for the rare leptonic decay B+ → μ+vμ. PHYSICAL REVIEW LETTERS, 92(22), 1-7 [10.1103/PhysRevLett.92.221803].
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