Nonresonant Contributions in B->rho pi Decay

Abstract

We consider nonresonant contributions in the Dalitz plot analysis of B->rho pi->pi^+ pi^- pi^0 decay and their potential impact on the extraction of the CKM parameter alpha. In particular, we examine the role of the heavy mesons B^* and B_0, via the process B->pi (B^*, B_0)->pi^+ pi^- pi^0, and their interference with resonant contributions in the rho-mass region. We discuss the inherent uncertainties and suggest that the effects may be substantially smaller than previously indicated.

15 pages, 3 figures; minor changes, version to appear in Phys. Rev. D

References in corpus (1)

• Rescattering and chiral dynamics in B\to ρπdecay

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