Final state interaction phase in B decays
M. Suzuki, L. Wolfenstein
TL;DR
This paper estimates the strong interaction phase in B meson decays to two mesons, concluding it is typically around 20 degrees based on meson-meson inelastic scattering at 5 GeV, with phase estimates depending on final state probabilities.
Contribution
It provides a quantitative estimate of the strong phase in B decays based on meson scattering data, highlighting the dependence on final state probabilities.
Findings
Strong phase in B decays is about 20 degrees.
Phase estimates depend on the relative probability of final states.
Inelastic scattering data informs phase estimates.
Abstract
From an estimate of the meson-meson inelastic scatterin at 5 GeV it is concluded that a typical strong phase in B decays to two mesons is of order of 20 degrees. For a particular final state an estimate of the phase depends on whether that state is more or less probable as a final state compared to those states to which it is connected by the strong interaction S matrix.
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