Search for B+→D*+π0 decay

We report on a search for the doubly Cabibbo suppressed decay B+→D*+π0, based on a data sample of 657×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find no significant signal and set an upper limit of B(B+→D*+π0)<3.6×10-6 at the 90% confidence level. This limit can be used to constrain the ratio between suppressed and favored B→D*π decay amplitudes, r<0.051, at the 90% confidence level. © 2008 The American Physical Society.


Published in:
Physical Review Letters, 101, 4, 041601
Year:
2008
Other identifiers:
Scopus: 2-s2.0-48849087468
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 Record created 2010-11-05, last modified 2018-05-17


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