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.
@article{arxiv.hep-ex/0405068,
title = {Evidence of B0 --> rho0 pi0},
author = {J. Dragic and T. Gershon},
journal= {arXiv preprint arXiv:hep-ex/0405068},
year = {2019}
}
Comments
RevTex4, 5 pages, 4 figures, submitted to Phys.Rev.Lett