Unlocking time-dependent $CP$ violation without signal vertexing at $B$ factories

Mirco Dorigo, Sebastiano Raiz, Diego Tonelli +1

We present a method to measure time-dependent $CP$ violation in $B^0$ decays produced in ${\rm Y}(4S)\to B^0{\overline{B}}^0$ events at $B$ factories without reconstructing the signal dec…