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.

19 pages, 1 figure

References in corpus (1)

• A precise determination of $\alpha$ using $B^0\to {\rho }^{+}{\rho }^{-}$ and $B^{+}\to K^{\ast 0}{\rho }^{+}$

Cited by in corpus (4)

• 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
• Inelastic final-state interaction