We present a measurement of the partial branching fractions and mass spectra of the exclusive radiative penguin processes B→Kππγ in the range mKππ<1.8GeV/c2. We reconstruct four final states: K+π-π+γ, K+π-π0γ, KS0π-π+γ, and KS0π+π0γ, where KS0→π+π-. Using 232×106 e+e-→BB̄ events recorded by the BABAR experiment at the SLAC PEP-II asymmetric-energy storage ring, we measure the branching fractions B(B+→K+π-π+γ)=[2.95±0.13(stat)±0.20(syst)] ×10-5, B(B0→K+π-π0γ)=[4.07±0.22(stat)±0. 31(syst)]×10-5, B(B0→K0π+π-γ)=[1.85±0.21(stat) ±0.12(syst)]×10-5, and B(B+→K0π+π0γ)=[4. 56±0.42(stat)±0.31(syst)]×10-5.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2007). Measurement of branching fractions and mass spectra of B→Kππ γ. PHYSICAL REVIEW LETTERS, 98(21) [10.1103/PhysRevLett.98.211804].

Measurement of branching fractions and mass spectra of B→Kππ γ

CARPINELLI, Massimo;
2007

Abstract

We present a measurement of the partial branching fractions and mass spectra of the exclusive radiative penguin processes B→Kππγ in the range mKππ<1.8GeV/c2. We reconstruct four final states: K+π-π+γ, K+π-π0γ, KS0π-π+γ, and KS0π+π0γ, where KS0→π+π-. Using 232×106 e+e-→BB̄ events recorded by the BABAR experiment at the SLAC PEP-II asymmetric-energy storage ring, we measure the branching fractions B(B+→K+π-π+γ)=[2.95±0.13(stat)±0.20(syst)] ×10-5, B(B0→K+π-π0γ)=[4.07±0.22(stat)±0. 31(syst)]×10-5, B(B0→K0π+π-γ)=[1.85±0.21(stat) ±0.12(syst)]×10-5, and B(B+→K0π+π0γ)=[4. 56±0.42(stat)±0.31(syst)]×10-5.
Articolo in rivista - Articolo scientifico
BABAR experiment
English
2007
98
21
211804
none
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2007). Measurement of branching fractions and mass spectra of B→Kππ γ. PHYSICAL REVIEW LETTERS, 98(21) [10.1103/PhysRevLett.98.211804].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389654
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