A Standard Model analysis of $D^0\to \ddot{I}{€}^{-}\ddot{I}{€}^{+},K^{-}{K}^{+},K_{\mathrm{S}}^0{K}_{\mathrm{S}}^0$

Robert Fleischer, Maria Laura Piscopo, K. Keri Vos +1

The paper analyzes Standard Model predictions for the singly Cabibbo‑suppressed charm decays D⁰→π⁻π⁺, D⁰→K⁻K⁺ and D⁰→K_S⁰K_S⁰ using factorisation, isospin symmetry and U‑spin break…