Gamma-ray transitions in ΛΛ hypernuclei

Hypernuclei containing two lambda particles are important because of the unique information they hold concerning the ΛΛ interaction and because of their relationship to proposals for new particles and new states of matter containing multiple strangeness. They are the non-exotic form of strange matter. Intense K- beams with momentum near 1.8 Gev/c will make it possible to study ΛΛ hypernuclei. The (K-,K+) reaction can be used to form double hypernuclei directly, or through Ξ- hyperons which are subsequently slowed down and captured (Ξ-p→ΛΛ). This paper will discuss characteristics γ-ray transitions which may be used as a signature for the existence of double hypernuclei. 5 refs