2001/02/15 by P. Zenczykowski
Physics and Astronomy · #hep-ph
published as Acta Phys.Polon. B32 (2001) 1847-1856 · 11 LaTeX pages, 3 .ps figure files, presented at the Cracow Epiphany Conference on b Physics and CP Violation, Cracow, Poland, January 5-7, 2001
arxiv created 2001/02/15 · arxiv updated 2009/11/30
Inelastic rescattering effects in B decays into a pair PP of pseudoscalar mesons (PP = ππ or KK) are discussed. It is assumed that B meson decays through a short-distance tree-diagram process into two jet-like states composed of low-mass resonances M1 M2 which rescatter into PP. The rescattering of resonance pair M1 M2 into the final PP state is assumed to proceed through a Regge flavour exchange. Since such processes constitute a fraction,diminishing with increasing energy, of total inelastic PP scattering, the inelastic rescattering contribution should die out for mB → ∞. At mB = 5.2 ~GeV, however, explicit estimates show that rescattering corrections could be substantial, leading to long-distance corrections to B0 → KK, comparable to short-distance penguin contributions.