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Analysis of a Double-Λ Hypernucleus Event in the KEK-PS E373 Experiment
- KEK-PS E373, a hybrid emulsion experiment, was performed using a 1.66 GeV/c separated K- meson beam at High Energy Accelerator Research Organization (KEK) proton synchrotron (PS). The purpose of this experiment is to study S= -2 nuclei produced via Ξ- hyperon captured at rest in nuclear emulsion. We have completed the analysis of about 90% of total emulsion data, among which we have successfully observed seven events of double-Λ hypernucleus and two events of the production of twin Λ˗hypernuclei. We succeeded to find the production and the decay of a nucleus. The value of Λ˗Λ interaction energy, B for double-hypernucleus event#7 was MeV which is consistent with the result given by “NAGARA event” (event#2).
Khin Than Tint
- Universities Research Journal