Systematics of soft final state interactions in B decay
John F. Donoghue, Eugene Golowich, Alexey A. Petrov, João M. Soares
Abstract
By using very general and well established features of soft strong interactions we show, contrary to conventional expectations, that (i) soft final state interactions (FSI) do not disappear for large mB, (ii) inelastic rescattering is expected to be the main source of soft FSI phases, and (iii) flavor off-diagonal FSI are suppressed by a power of mB, but are quite likely to be significant at mB 5~GeV. We briefly discuss the influence of these interactions on tests of CP-violation and on theoretical calculations of weak decays.
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