Dilepton asymmetries at $B$ factories in search of $\Delta B =- \Delta   Q$ transitions
  In order to detect the possible presence of $\Delta B = - \Delta Q$ amplitudes in neutral $B$ meson decays, we consider the measurement of decay time asymmetries involving like-sign dilepton events at the $B$ factories. 
G. V. Dass (Ind. Inst. Tech., Mumbai) and K. V .L. Sarma (Tata Inst.   Fund. Res., Mumbai)