Probing CP violation with time integrated decay rates into non-CP eigenstates

Abstract

Many of the experiments proposed to look for interference CP violation in neutral B mesons concentrate on tagged decay into CP eigenstates. Aleksan, Dunietz, Kayser and Le Diberder have shown that one can also look for interference CP violation using tagged decays into non-CP eigenstates. In all these methods, one must trace the time dependence of the decays. In this article we discuss a new method to search for interference CP violation by using only time integrated rates into non-CP eigenstates. The method hinges on the comparison between the decays of ${\rm Y}(4S)$ into $ff$, $\bar{f}\bar{f}$, and $f\bar{f}$, and also uses the rates for $l^{+}f$ and $l^{-}f$. This method does not depend on how the ${\rm Y}(4S)$ is produced; provided enough statistics, one can use both symmetric and asymmetric colliders.

Comments: 7 pages, Latex