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Nonresonant contributions in B→ρπ decay

Jusak Tandean*

S. Gardner†,‡

  • Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055

  • Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055
  • and Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309

  • *Electronic address: jtandean@pa.uky.edu
  • †Electronic address: gardner@pa.uky.edu
  • ‡Permanent address.
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Phys. Rev. D 66, 034019 – Published 20 August, 2002

DOI: https://doi.org/10.1103/PhysRevD.66.034019

Abstract

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 Cabibbo-Kobayashi-Maskawa 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.

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Phys. Rev. D 66, 034019– Published 20 August, 2002
  • Received 16 April 2002

© 2002 American Physical Society

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