Radiative [Formula presented] Meson Decays into [Formula presented] and [Formula presented] Final States
Journal
Physical Review Letters
Journal Volume
89
Journal Issue
23
Date Issued
2002
Author(s)
Nishida, S. et al.
Nakao, M.
Abe, K.
Abe, K.
Abe, T.
Ahn, B.S.
Aihara, H.
Akatsu, M.
Asano, Y.
Aushev, T.
Bakich, A.M.
Ban, Y.
Abstract
We report observations of radiative B meson decays into the K+pi(-)gamma and K+pi(-)pi(+)gamma final states. In the B0-->K+pi(-)gamma channel, we present evidence for decays via an intermediate tensor meson state with a branching fraction of B(B0-->K(*)(2)(1430)(0)gamma)=[1.3+/-0.5(stat)+/-0.1(syst)]x10(-5). We measure the branching fraction B(B+-->K+pi(-)pi(+)gamma)=[2.4+/-0.5(stat) +0.4-0.2(syst)]x10(-5), in which the B+-->K(*0)pi(+)gamma and B+-->K+rho(0)gamma channels dominate. The analysis is based on a data set of 29.4 fb(-1) recorded by the Belle experiment at the KEKB collider.
Type
journal article