Perspectives for Detection of a Higgsino-like Relic Neutralino

A. Bottino, N. Fornengo, G. Mignola +2

It has been conjectured by Ambrosanio, Kane, Kribs, Martin and Mrenna (AKM) that the CDF event $p\bar{p}\to e^{+}{e}^{-}\gamma \gamma +missing{E}_T$ is due to a decay chain involving two neutrali…