The branching fractions and charge asymmeteries in B-meson decays were discussed. The decay amplitudes were evaluated from the measurements of decay rates and CP-violating charge asymmetries. The B-background from charmed and charmless B decays was investigated using MC-simulated events. The uncertainties in the signal MC simulation, which include signal misreconstruction, were evaluated from fully reconstructed B-decays. The misreconstruction signal was due the presence of low momentum pions in the B-decays.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2004). Measurement of branching fractions and charge asymmetries in B ± → ρ±π0 and B ± → ρ0π± decays, and search for B0 → ρ0π0. PHYSICAL REVIEW LETTERS, 93(5), 1-7 [10.1103/PhysRevLett.93.051802].

Measurement of branching fractions and charge asymmetries in B ± → ρ±π0 and B ± → ρ0π± decays, and search for B0 → ρ0π0

CARPINELLI, Massimo;
2004

Abstract

The branching fractions and charge asymmeteries in B-meson decays were discussed. The decay amplitudes were evaluated from the measurements of decay rates and CP-violating charge asymmetries. The B-background from charmed and charmless B decays was investigated using MC-simulated events. The uncertainties in the signal MC simulation, which include signal misreconstruction, were evaluated from fully reconstructed B-decays. The misreconstruction signal was due the presence of low momentum pions in the B-decays.
Articolo in rivista - Articolo scientifico
Computer simulation; Electrons; Error analysis; Ionization; Kinematics; Monte Carlo methods; Probability; Probability density function; Protons; Resonance; Topology; Charge asymmeteries; Decay rates; Muons; Pions; Elementary particles;
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). Measurement of branching fractions and charge asymmetries in B ± → ρ±π0 and B ± → ρ0π± decays, and search for B0 → ρ0π0. PHYSICAL REVIEW LETTERS, 93(5), 1-7 [10.1103/PhysRevLett.93.051802].
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