CP Violation in τ Decays at SuperB and Belle II Experiments – like Finding Signs of Dark Matter

BaBar has found A_CP(τ⁻→νK_Sπ⁻[≥π⁰])=(−0.36±0.23±0.11)% with 2.8 σ difference with SM prediction A_CP(τ⁻→νK_Sπ⁻)=(0.36±0.01)% based on K⁰−K^¯0 oscillation. Four central points: (i) to establish both the ‘existence’ of New Dynamics (ND) and its ‘features’ in local CP asymmetries; (ii) to increase the number of final states to be probed; (iii) to emphasize correlations of CP violations between different final states; (iv) likewise for the correlations with D^± final states. These measurements should be possible at SuperB and Belle II experiments