Abstract
We report a search for B0 decays into invisible final states using a data sample of 657×106 BB¯ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB e+e− collider. The signal is identified by fully reconstructing a hadronic decay of the accompanying B meson and requiring no other particles in the event. No significant signal is observed, and we obtain an upper limit of 1.3×10−4 at the 90% confidence level for the branching fraction of invisible B0 decay.Received 26 June 2012DOI:https://doi.org/10.1103/PhysRevD.86.032002© 2012 American Physical Society
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