| dc.description |
We discuss the physics case of a high luminosity B-Factory running at the Υ(5S) resonance. We show that the coherence of the B meson pairs is preserved at this resonance, and that B<sub>s</sub> can be well distinguished from B<sub>d</sub> and charged B mesons. These facts allow to cover the physics program of a traditional B-Factory and, at the same time, to perform complementary measurements which are not accessible at the Υ(4S). In particular we show how, despite the experimental limitations in performing time-dependent measurements of B<sub>s</sub> decays, the same experimental information can be extracted, in several cases, from the determination of time-integrated observables. In addition, a few examples of the potentiality in measuring rare B<sub>s</sub> decays are given. Finally, we discuss how the study of B<sub>s</sub> meson will improve the constraints on New Physics parameters in the B<sub>s</sub> sector, in the context of the generalized Unitarity Triangle analysis. |
