Anomalous $WWZ$ couplings and $K_L\to {\mu }^{+}{\mu }^{-}$

Abstract

We study contributions to $K_L\to {\mu }^{+}{\mu }^{-}$ from anomalous $WWZ$ interactions. There are, in general, seven anomalous couplings. Among the seven anomalous couplings, only two of them contribute significantly. The others are suppressed by factors like $m_s^2/M_W^2$, $m_d^2$, or $m_K^2/M_W^2$. Using the experimental data on $K_L\to {\mu }^{+}{\mu }^{-}$, we obtain strong bounds on the two anomalous couplings.

9 pages, Revtex, UM-P-93/58, OZ-93/13

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