Search for a light Higgs boson in the decay $K^{+}$ → $π^{+}$ H, H→ $μ^{+}$ $μ^{-}$

Publisher Website

13 November 1989

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

Vol. 63 (20) , 2177-2180
https://doi.org/10.1103/physrevlett.63.2177

Abstract

An upper limit on the branching ratio of the decay

K^{+}

→

π^{+}

H, H→

μ^{+}

μ^{-}

is set at 1.5×

10^{- 7}

at the 90% confidence level, for a Higgs-boson mass in the interval 220<

m_{H}

<320 MeV/

c^{2}

. In addition, 90%-confidence-level upper limits on the branching ratios of the decays

K^{+}

→

π^{+}

μ^{+}

μ^{-}

and

K^{+}

→

μ^{+}

ν

μ^{+}

μ^{-}

are set at 2.3×

10^{- 7}

and 4.1×

10^{- 7}

, respectively.

Keywords

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