We present a study of B-→DCP0K- decays, where DCP0 is reconstructed in CP-even channels, based on a sample of 88.8×10^6 Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II e+e- storage ring. We measure the ratio of Cabibbo-suppressed to Cabibbo-favored branching fractions B(B-→DCP0K-)/B(B-→DCP0π-)=[8.8±1.6(stat)±0.5(syst)]×10-2 and the CP asymmetry ACP=0.07±0.17(stat)±0.06(syst). We also measure B(B-→D0K-)/B(B-→D0π-)=[8.31±0.35(stat)±0.20(syst)]×10-2 using a sample of 61.0×106 BB̅ pairs.
Measurement of the Branching Fractions and CP Asymmetry of B-→D(CP)0K- Decays with the BABAR Detector
MARGONI, MARTINO;SIMONETTO, FRANCO;STROILI, ROBERTO;VOCI, CESARE;SIMI, GABRIELE;
2004
Abstract
We present a study of B-→DCP0K- decays, where DCP0 is reconstructed in CP-even channels, based on a sample of 88.8×10^6 Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II e+e- storage ring. We measure the ratio of Cabibbo-suppressed to Cabibbo-favored branching fractions B(B-→DCP0K-)/B(B-→DCP0π-)=[8.8±1.6(stat)±0.5(syst)]×10-2 and the CP asymmetry ACP=0.07±0.17(stat)±0.06(syst). We also measure B(B-→D0K-)/B(B-→D0π-)=[8.31±0.35(stat)±0.20(syst)]×10-2 using a sample of 61.0×106 BB̅ pairs.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.
