Some Prospects for the Determination of the Unitarity Triangle Before the LHC Era

Details Some Prospects for the Determination of the Unitarity Triangle Before the LHC Era Some Prospects for the Determination of the Unitarity Triangle Before the LHC Era

1994-09-05

arxiv.org/abs/hep-ph/9409226v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

(Invited talk given at ICHEP '94, Glasgow, July 1994.), 6 pages (with 4 PostScript figures available separately), Munich Techn

Scientific paper

Anticipating improved determinations of $m_t$, $|V_{cb}|$, $|V_{ub}/V_{cb}|$, $B_K$ and $F_B \sqrt{B_B}$ in the next five years we make an excursion into the future in order to find a possible picture of the unitarity triangle, of quark mixing and of CP violation around the year~2000. We then analyse what impact on this picture will result from the measurements of the four possibly cleanest quantities: $BR(K^+ \to \pi^+ \nu \bar\nu)$, $x_d/x_s$, $\sin(2\alpha)$ and $\sin(2\beta)$. In the course of our investigations we extend the analysis of the unitarity triangle beyond the leading order in the Wolfenstein parameter $\lambda$. \\ We will also shortly present the status of direct CP violation in $K \rightarrow \pi\pi$ and $K_{\rm L} \rightarrow \pi^0 e^+ e^-$.

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