Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-07-13
Phys.Lett. B493 (2000) 301-306
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTex 9 pages (4 PS figures included). Typing errors removed. Latest data considered. References added. Acknowledgements modif
Scientific paper
10.1016/S0370-2693(00)01150-3
The significance of final-state interactions in B_d-->\pi\pi decays is phenomenologically demonstrated by taking elastic \pi\pi--\pi\pi and inelastic \pi\pi--D\bar{D} rescattering effects into consideration. We find that the present experimental data on B^0_d-->\pi^+\pi^- can well be understood in this approach without fine-tuning of the input parameters, and large CP-violating asymmetries are expected to manifest themselves in such charmless rare processes.
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