Evidence for $B^0 \\to \\pi^0 \\pi^0$
Journal
Physical Review Letters
Journal Volume
91
Pages
261801
Date Issued
2003-08
Author(s)
Lee, S.H.
Suzuki, K.
Abe, K.
Abe, K.
Abe, T.
Adachi, I.
Ahn, B.S.
Aihara, H.
Akai, K.
Akatsu, M.
Akemoto, M.
Asano, Y.
Abstract
We report evidence for the decay B0-->pi(0)pi(0). The analysis is based on a data sample of 152x10(6) BBmacr; pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) storage ring. We detect a signal for B0-->pi(0)pi(0) with a significance of 3.4 standard deviations, and measure the branching fraction to be [1.7+/-0.6(stat)+/-0.2(syst)]x10(-6).
Type
conference paper