Search for Direct CP Violation in Non-Leptonic Decays of Charged $\Xi$ and $\Lambda$ Hyperons

Abstract

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 $0.012\pm 0.014$.

Submitted for publication; RevTex, 13 pages, 4 figures