Branching fractions of B meson decays in Mesogenesis

0308015 August 2003 Measurement of Branching Fractions and Charge Asymmetries in B Meson Decays

We present preliminary measurements of branching fractions and charge asymmetries for the B meson decays B → η(′)K∗, B → η(′)ρ, and B+ → η′π+. The data were recorded with the BABAR detector at PEP-II and correspond to 89 × 106 BB pairs produced in e+e− annihilation through the Υ (4S) resonance. We find the branching fractions B(B0 → ηK∗0) = (19.0 −2.1 ± 1.3) × 10−6, B(B+ → ηK∗+) = (25.7 −3.6±1....

Measurement of Branching Fractions and Charge Asymmetries in B Meson Decays to η

We present preliminary measurements of branching fractions and charge asymmetries for the B meson decays B → η(′)K∗, B → η(′)ρ, and B+ → η′π+. The data were recorded with the BABAR detector at PEP-II and correspond to 89 × 106 BB pairs produced in e+e− annihilation through the Υ (4S) resonance. We find the branching fractions B(B0 → ηK∗0) = (19.0 −2.1 ± 1.3) × 10−6, B(B+ → ηK∗+) = (25.7 −3.6±1....

Measurement of branching fractions and CP - violating charge asymmetries for B - meson decays

Measurement of the branching fractions of the rare decays B

B. Aubert, M. Bona, Y. Karyotakis, J. P. Lees, V. Poireau, E. Prencipe, X. Prudent, V. Tisserand, J. Garra Tico, E. Grauges, L. Lopez, A. Palano, M. Pappagallo, G. Eigen, B. Stugu, L. Sun, G. S. Abrams, M. Battaglia, D.N. Brown, J. Button-Shafer, R. N. Cahn, R. G. Jacobsen, J. A. Kadyk, L. T. Kerth, Yu. G. Kolomensky, G. Kukartsev, G. Lynch, I. L. Osipenkov, M. T. Ronan,* A. Suzuki, K. Tackmann...

Measurement of Branching Fractions in τ Decays

Full LEP-I data collected by the ALEPH detector during 1991-1995 running are analyzed in order to measure the τ decay branching fractions. The analysis follows the global method used in the published study based on 1991-1993 data, with several improvements, especially concerning the treatment of photons and π’s. Extensive systematic studies are performed, in order to match the large statistics ...