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

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

2002-08-16

arxiv.org/abs/hep-ex/0208026v1

Nucl.Phys.Proc.Suppl. 115 (2003) 54-57

Physics

High Energy Physics

High Energy Physics - Experiment

Presented at the 5th International Conference on Hyperons, Charm and Beauty Hadrons, June 2002., Vancouver, Canada: 4 pages, 5

Scientific paper

10.1016/S0920-5632(02)01953-9

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

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