Unitary Limit on $K^0_L \to μ^+ μ^-$ and the Top Quark Mass
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A brief overview of the recent measurements of the branching ratio of the rare $K_L^0 \to μ^+ μ^-$ decay in the context of their agreement with the Standard Model (SM) is given. It is shown that KEK result well correlates with the SM and B-physics, whereas the BNL results are in conflict with the SM with the heavy top quark.
6 pages, LaTeX, Talk given by N.V.Mikheev at Les Rencontres de Physique de la Vallee d'Aoste: Results and Perspectives in Particle Physics, La Thuile, Italy, March 5-11, 1995
6 pages, LaTeX, Talk given by N.V.Mikheev at Les Rencontres de Physique de la Vallee d'Aoste: Results and Perspectives in Particle Physics, La Thuile, Italy, March 5-11, 1995