Evidence of B0 --> rho0 pi0

Details Evidence of B0 --> rho0 pi0 Evidence of B0 --> rho0 pi0

2004-05-24

arxiv.org/abs/hep-ex/0405068v1

Phys.Rev.Lett.93:131802,2004

Physics

High Energy Physics

High Energy Physics - Experiment

RevTex4, 5 pages, 4 figures, submitted to Phys.Rev.Lett

Scientific paper

10.1103/PhysRevLett.93.131802

We present the first evidence of the decay B0 --> rho0 pi0, using 140fb^-1 of
data collected at the Upsilon(4S) resonance with the Belle detector at the KEKB
asymmetric e+e- collider. We detect a signal with a significance of 3.5
standard deviations, and measure the branching fraction to be Br(B0 ->- rho0
pi0) = (5.1 +/- 1.6(stat) +/- 0.9(syst))*10^-6.

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