Observation of B ?? D (*) K- K0(*) decays
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Journal Volume
542
Journal Issue
3-4
Pages
171-182
Date Issued
2002
Author(s)
Abstract
The B → D(*) K- K(*)0 decays have been observed for the first time. The branching fractions of the B → D(*) K- K(*)0 decay modes are measured. Significant signals are found for the B → D(*) K- K*0 and B- → D0 K- KS0 decay modes. S The invariant mass and polarization distributions for the K- K*0 and K- KS0 subsystems have been studied. For the K- K*0 sybsystem these distributions agree well with those expected for two-body B → D(*)a1-(1260) decays, with a1(1260) → K- K*0. The analysis was done using 29.4 fb-1 of data collected with the Belle detector at the e+e- asymmetric collider KEKB. © 2002 Elsevier Science B.V. All rights reserved.
Subjects
B decay; Branching fraction; ss̄ pair
Other Subjects
article; degradation; elementary particle; mass; mathematical model; normal distribution; polarization; quantum mechanics
Type
journal article