Nonleptonic $B_s$ to charmonium decays: analyses in pursuit of determining the weak phase $β_s$

Details Nonleptonic $B_s$ to charmonium decays: analyses in pursuit of determining the weak phase $β_s$ Nonleptonic $B_s$ to charmonium decays: analyses in pursuit of determining the weak phase $β_s$

2010-09-23

arxiv.org/abs/1009.4612v1

Phys.Rev.D83:094027,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 17 pages, 2 Eps figures

Scientific paper

10.1103/PhysRevD.83.094027

We analyze nonleptonic $B_s$ decays to a charmonium state and a light meson, induced by the $b \to c {\bar c}s$ transition, which are useful to access the $B_s$-${\bar B}_s$ mixing phase $\beta_s$. We use generalized factorization and $SU(3)_F$ symmetry to relate such modes to correspondent $B$ decay channels. We discuss the feasibility of the measurements in the various channels, stressing the importance of comparing different determinations of $\beta_s$ in view of the hints of new physics effects (NP) recently emerged in the $B_s$ sector. Finally, adopting a general parametrization of NP contributions to the decay amplitudes, we discuss how to experimentally constrain new physics parameters.

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