“…According to the final state of the D, we have the following methods GLW (Gronau-London-Wyler) method [6,9], which uses CP eigenstates of D 0 , as D 0 [7,10], which uses the doubly Cabibbo suppressed mode D 0 → K + π − and GGSZ (or Dalitz) method [8,10], which uses three body decays of D 0 , as D 0 → K 0 s π + π − . All mentioned methods require no tagging or time-dependent measurements, and many of them only involve charged particles in the final state.…”