Inclusive CP Asymmetries in Semileptonic Decays of B Mesons

Abstract

We estimate the sensitivity of single lepton CP violation measurements with respect to that of traditional di-lepton measurements. We find that the sensitivity of the single lepton method is better than that of the di-lepton method. The achievable sensitivity with the currently available data is already in the range relevant to standard model predictions. We also give general expressions for inclusive decay time distributions on ${\rm Y}4S$ where the other $B$ is not measured, which will be used to obtain time dependent asymmetries. The expression is of general use whenever one deals with inclusive time-dependent as well as time-integrated measurements in ${\rm Y}(4S)\to B^0{\bar{B}}^0$ where the final state of the other $B$ is not reconstructed or when only the time difference is measured.

Comments: 7 pages, 1 figure. Two references added, and a few typos corrected