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$Ω^-$ Hyperon Decay Modes with the HyperCP Experiment at Fermilab

N. Solomey
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Abstract

The HyperCP experiment (Fermilab E871) has the largest recorded sample of $Ω^-$ hyperon decays, allowing new searches for three rare decay modes, each with five charged tracks in the final state. Results are presented for $Ω^-\toΞ^-π^+π^-$; $Ω^- \to Ξ^0(1530)π^-$; and the flavor-changing neutral-current decay $Ω^- \to Ξ^-μ^+μ^-$. Normalization of these measurements were to the decay $Ω^- \to ΛK^-$ with a five-track topology similar to the signal mode with the subsequent decay of $Λ\to p π^-$ and $K^- \to π^- π^+ π^-$ in the decay volume.

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N. Solomey. 2002-08-16. $Ω^-$ Hyperon Decay Modes with the HyperCP Experiment at Fermilab. https://doi.org/10.1016/s0920-5632(02)01953-9

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