Nonresonant Contributions in B->rho pi Decay

Details Nonresonant Contributions in B->rho pi Decay Nonresonant Contributions in B->rho pi Decay

2002-04-15

arxiv.org/abs/hep-ph/0204147v2

Phys.Rev.D66:034019,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.66.034019

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.

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