Annihilation contribution and B → a 0π, f 0 K decays
Instituto de Física, Universidad de Guanajuato, Loma del Bosque 103, Lomas del Campestre, 37150, León, Guanajuato, México
2 Depto. de Física, Universidad Industrial de Santander, A.A. 678, Bucaramanga, Colombia
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Published online: 24 January 2006
We analyze the 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 . 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.
© Springer-Verlag, 2006