Evidence of B0 --> rho0 pi0

et al. (for the Belle Collaboration); J. Dragic; T. Gershon

arxiv: hep-ex/0405068 · v1 · pith:NYL3A4RCnew · submitted 2004-05-24 · ✦ hep-ex

Evidence of B0 --> rho0 pi0

J. Dragic , T. Gershon , et al. (for the Belle Collaboration) This is my paper

classification ✦ hep-ex

keywords rho0evidenceasymmetricbellebranchingcollectedcolliderdata

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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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Evidence of B0 --> rho0 pi0

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