arXiv:hep-ph/9802434·v1·High Energy Physics — Phenomenology

$B_{s}^{0} \to D_{s}^{-} a_{1}^{+} (D_{s}^{-} \to ϕ π^{-}, D_{s}^{-} \to K^{* 0} K^{-})$ decay channel in the ATLAS $B_{s}^{0}$ -mixing studies

A.V. Bannikov · G.A. Chelkov · Z.K. Silagadze

Abstract

It is shown, using a track-level simulation, that the use of the $D_{s}^{-} \to K^{* 0} K^{-}$ decay channel for $D_{s}^{-}$ reconstruction, in additioon with the previously studied $D_{s}^{-} \to ϕ π^{-}$ mode, enables two fold gain in the ATLAS $B_{s}^{0}$ -mixing signal statistics through $B_{s}^{0} \to D_{s}^{-} a_{1}$ $B_{s}^{0}$ -decay channel. A new modification of the amplitude fit method is suggested for the $x_{s}$ determination. Some general aspects of the $B_{s}^{0}$ -mixing phenomenon is illustrated by pictures of Casimir Malevich, Maurits Cornelis Escher and Salvador Dali.

Comments: 23 pages, LaTex, 7 figures and 4 pictures

Bs0​→Ds−​a1+​(Ds−​→ϕπ−,Ds−​→K∗0K−) decay channel in the ATLAS Bs0​-mixing studies

Abstract

$B_{s}^{0} \to D_{s}^{-} a_{1}^{+} (D_{s}^{-} \to ϕ π^{-}, D_{s}^{-} \to K^{* 0} K^{-})$ decay channel in the ATLAS $B_{s}^{0}$ -mixing studies