$B_s^0 \to D_s^-a_1^+(D_s^- \to φπ^-, D_s^- \to K^{*0}K^-)$ decay channel in the ATLAS $B_s^0$-mixing studies

Details $B_s^0 \to D_s^-a_1^+(D_s^- \to φπ^-, D_s^- \to K^{*0}K^-)$ decay channel in the ATLAS $B_s^0$-mixing studies $B_s^0 \to D_s^-a_1^+(D_s^- \to φπ^-, D_s^- \to K^{*0}K^-)$ decay channel in the ATLAS $B_s^0$-mixing studies

1998-02-26

arxiv.org/abs/hep-ph/9802434v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, LaTex, 7 figures and 4 pictures

Scientific paper

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 $D_s^- \to \phi \pi^-$ 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.

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