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Annihilation contribution and B → a 0π, f 0 K decays

  • Theoretical Physics
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Abstract.

We analyze the \(B^0 \to a^\pm_0 \pi^\mp\) and B –,0 → f 0 K –,0 decays and show that a consistent phenomenological picture can be obtained within the factorization approximation. In this approach the O 6 operator provides the dominant contributions to the suppressed channel \(B^0 \to a^ + _0 \pi^-\). An estimate of the annihilation form factor using perturbative QCD indicates that this contribution is not negligible, moreover interference with other penguin contributions includes a free parameter since the phase of the annihilation amplitude is not determined. Assumptions based on SU(2) isospin symmetry provide relations between different B decays involving one scalar and one pseudoscalar meson.

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Authors and Affiliations

  1. Instituto de Física, Universidad de Guanajuato, Loma del Bosque 103, Lomas del Campestre, 37150, León, Guanajuato, México

    D. Delepine & J. L. Lucio M.

  2. Depto. de Física, Universidad Industrial de Santander, A.A. 678, Bucaramanga, Colombia

    C. A. Ramírez

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  1. D. Delepine
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  2. J. L. Lucio M.
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  3. C. A. Ramírez
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Correspondence to D. Delepine.

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Delepine, D., M., J.L.L. & Ramírez, C.A. Annihilation contribution and B → a 0π, f 0 K decays. Eur. Phys. J. C 45, 693–700 (2006). https://doi.org/10.1140/epjc/s2005-02432-5

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