B(sub s)(sup 0) (yields) D(sub s)(sup -)(alpha)(sub 1)(sup +) (D(sub s)(sup -) (yields) (phi)(pi)(sup -), D(sub s)(sup -) (yields) K(sup *0)K(sup -))-decay channel in the ATLAS B(sub s)(sup 0)-mixing studies

摘要

It is shown, using a track-level simulation, that the use of the D(sub s) (sup -) (yields) K(sup *0)K(sup -) - decay channel for D(sub s)(sup -) reconstruction, in addition with the previously studied D(sub s)(sup -) (yields) (phi)(pi)(sup -) mode, enables two fold gain in the ATLAS B(sub s)(sup 0)- mixing signal statistics through B(sub s)(sup 0) (yields) D(sub s)(sup -)(alpha) (sub 1) B(sub s)(sup 0)-decay channel. A new modification of the amplitude fit method is suggested for the x(sub s)-determination. 13 refs., 7 figs., 2 tabs.