Search for Direct CP Violation in Non-Leptonic Decays of Charged $Ξ$ and $Λ$ Hyperons

Details Search for Direct CP Violation in Non-Leptonic Decays of Charged $Ξ$ and $Λ$ Hyperons Search for Direct CP Violation in Non-Leptonic Decays of Charged $Ξ$ and $Λ$ Hyperons

2000-07-17

arxiv.org/abs/hep-ex/0007030v1

Phys.Rev.Lett.85:4860-4863,2000

Physics

High Energy Physics

High Energy Physics - Experiment

Submitted for publication; RevTex, 13 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.85.4860

A search for direct CP violation in the non-leptonic decays of hyperons has been performed. In comparing the product of the decay parameters, $\alpha_{\Xi}\alpha_{\Lambda}$, in terms of an asymmetry parameter, $A_{\Xi\Lambda}$, between hyperons and anti-hyperons in the charged $\Xi \to \Lambda \pi$ and $\Lambda \to p \pi$ decay sequence, we found no evidence of direct CP violations. The parameter $A_{\Xi\Lambda}$ was measured to be $0.012 \pm 0.014$.

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