U(2) and minimal flavour violation in supersymmetry

Rather than sticking to the full U(3)³ approximate symmetry normally invoked in Minimal Flavour Violation, we analyze the consequences on the current flavour data of a suitably broken U(2)³ symmetry acting on the first two generations of quarks and squarks. A definite correlation emerges between the ΔF=2 amplitudes M(K⁰ → K̄⁰), M(B_d → B̄_d) and M(B_s → B̄_s), which can resolve the current tension between M(K⁰ → K̄⁰) and M(B_d → B̄_d), while predicting M(B_s → B̄_s). In particular, the CP violating asymmetry in B_s→ψφ is predicted to be positive S_ψφ=0.12±0.05 and above its Standard Model value (S _ψφ=0.041±0.002). The preferred region for the gluino and the left-handed sbottom masses is below about 1÷1.5 TeV. An existence proof of a dynamical model realizing the U(2)³ picture is outlined.