Super-Hypernuclei in the Quark-Shell Model

概要

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A super-hypernucleus is a nucleus which consists of many strange quarks as well asup and down quarks. An important part of the results of our recent investigation onthe mass spectrum and other properties of super-hyjcernuclei in the quark-shell modelis reported. It is expected that not only certain exotic nuclei such as the "dideltas"(DJ"" and Dd ) but also certain super-hypernuclei such as the "hexalambda"(H2) and the "vigintiquattuou'alambda" (Vq2) may appear as quasi-stable nuclei.However, in the quark-shell model, there is no quaIita1.ive reason why the"dihyperon" or "H dibaryon" (H) should be quasi??stable or even stable. Many otherpredictions including a sudden increase of the K / n ratio due to the production ofsuper-hypernuclei in heavy-ion collisions at high energies are also made.[super-hypernuclei, quark-shell model, "didelta", "hexalambda", "vigintiquat- ll tuoralambda", dihyperon, I-I dibaryon, heavy-io:n collision, high energy, theory [
社団法人日本物理学会の論文
1989-10-15