Nonresonant Contributions in B → ρπ Decay
نویسندگان
چکیده
We consider nonresonant contributions in the Dalitz plot analysis of B → ρπ → π+π−π0 decay and their potential impact on the extraction of the CKM parameter α. In particular, we examine the role of the heavy mesons B∗ and B0, via the process B → π(B∗, B0) → π+π−π0, and their interference with resonant contributions in the ρ-mass region. We discuss the inherent uncertainties and suggest that the effects may be substantially smaller than previously indicated. ‡ Permanent Address. Electronic address: [email protected] Electronic address: [email protected]
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