Using 226×10^6 Υ(4S)→BB̅ events collected with the BABAR detector at the PEP-II e+e- storage ring at the Stanford Linear Accelerator Center, we measure the branching fraction for B0→D̅ 0K+π-, excluding B0→D*-K+, to be B(B0→D̅ 0K+π-)=(88±15±9)×10-6. We observe B0→D̅ 0K*(892)0 and B0→D2*(2460)-K+ contributions. The ratio of branching fractions B(B0→D*-K+)/B(B0→D*-π+)=(7.76±0.34±0.29)% is measured separately. The branching fraction for the suppressed mode B0→D0K+π- is B(B0→D0K+π-)<19×10-6 at the 90% confidence level.
Measurement of Branching Fractions and Resonance Contributions for B0→D̅ 0K+π- and Search for B0→D0K+π- Decays
SIMI, GABRIELE;MARGONI, MARTINO;SIMONETTO, FRANCO;STROILI, ROBERTO;VOCI, CESARE;
2006
Abstract
Using 226×10^6 Υ(4S)→BB̅ events collected with the BABAR detector at the PEP-II e+e- storage ring at the Stanford Linear Accelerator Center, we measure the branching fraction for B0→D̅ 0K+π-, excluding B0→D*-K+, to be B(B0→D̅ 0K+π-)=(88±15±9)×10-6. We observe B0→D̅ 0K*(892)0 and B0→D2*(2460)-K+ contributions. The ratio of branching fractions B(B0→D*-K+)/B(B0→D*-π+)=(7.76±0.34±0.29)% is measured separately. The branching fraction for the suppressed mode B0→D0K+π- is B(B0→D0K+π-)<19×10-6 at the 90% confidence level.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
