Observation of a Near-threshold D0 anti-D0 pi0 Enhancement in B ---> D0 anti-D0 pi0 K Decay
Journal
Physical Review Letters
Journal Volume
97
Pages
162002
Date Issued
2006-06
Author(s)
Abstract
We report the first observation of a near-threshold enhancement in the D(0)D[over](0)pi(0) system from B-->D(0)D[over](0)pi(0)Kappa decays using a 414 fb(-1) data sample collected at the Upsilon(4S) resonance. The enhancement peaks at a mass M=3875.2+/-0.7(+0.3)/(-1.6) +/-0.8 MeV/c2 and the branching fraction for events in the peak is B(B-->D(0)D[over](0)pi(0)Kappa)=(1.22+/-0.31(+0.23)/(-0.30))x10(-4). The data were collected with the Belle detector at the KEKB energy-asymmetric e+ e- collider.
Type
journal article