To the origin of the difference of FSI phases in $B\to \pi \pi$ and $B\to \rho \rho$ decays

Abstract

The final state interactions (FSI) model in which soft rescattering of low mass intermediate states dominates is suggested. It explains why the strong interaction phases are large in the $B_d\to \pi \pi$ channel and are considerably smaller in the $B_d\to \rho \rho$ one. Direct CP asymmetries of $B_d\to \pi \pi$ decays which are determined by FSI phases are considered as well.

arXiv comment19 pages, 1 figure

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Cited by in corpus (9)

• Revisiting Charmless Hadronic B_{u,d} Decays in QCD Factorization
• Possible resolution of the B -> pi pi, pi K puzzles
• Charmless Hadronic B-Meson Decays
• Resolving B-CP Puzzles in QCD Factorization
• Glauber gluons in spectator amplitudes for $B\to \pi M$ decays
• Transverse-momentum-dependent wave functions with Glauber gluons in $B\to \pi \pi$, $\rho \rho$ decays
• Observation of e+e- --> rho+rho- near sqrt(s)=10.58 GeV
• On the role of the final state interactions in rare B-decays
• Inelastic final-state interaction