DispersiveKL→μ+μ−contributions, neutral-kaon mixing, and mass of the top quark

Publisher Website

1 April 1982

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 25 (7) , 1860-1863
https://doi.org/10.1103/physrevd.25.1860

Abstract

We estimate the

K_{L} \to 2 μ

weak amplitude from data, by relating the dispersive

K_{L} \to 2 γ \to 2 μ

amplitude to that of

η \to 2 μ

. Allowed bands of mixing angles

θ_{2}

,

θ_{3}

are determined from this weak amplitude. The bands overlap those from analyses of

K^{0} - {\bar{K}}^{0}

mixing, with rather loose constraints on the

t

-quark mass which depend sensitively on the bag factor

B

. For

B = 0.4

,

m_{t}

is likely to be less than 75 GeV.

Keywords

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