Implications of a Low sin(2 beta): A Strategy for Exploring New Flavor Physics

Details Implications of a Low sin(2 beta): A Strategy for Exploring New Flavor Physics Implications of a Low sin(2 beta): A Strategy for Exploring New Flavor Physics

2000-07-31

arxiv.org/abs/hep-ph/0007360v1

Phys.Lett.B492:115-122,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 6 figures

Scientific paper

10.1016/S0370-2693(00)01070-4

We explore the would-be consequences of a low value of the CP-violating phase $\sin2\beta_{\psi K}$. The importance of a reference triangle obtained from measurements that are independent of $B$--$\bar B$ and $K$--$\bar K$ mixing is stressed. It can be used to extract separately potential New Physics contributions to mixing in the $B_d$, $B_s$ and $K$ systems. We discuss several constructions of this triangle, which will be feasible in the near future. The discrete ambiguity is at most two-fold and eventually can be completely removed. Simultaneously, it will be possible to probe for New Physics in loop-dominated rare decays.

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