在推广的手征SU(3)夸克模型下,研究了带有一个奇异夸克的双重子态∑^*△(ST=0 5/2)和∑^*△(ST=3 1/2)的结构.结果表明,尽管手征SU(3)夸克模型和推广手征SU(3)夸克模型短程力的机制完全不同,但两种模型下给出的定性结果是一样的。即这两个双重子态都是束缚态。能量在∑^*△道之下却在∧π△道之上.在推广手征SU(3)夸克模型下,∑^*△(ST=3 1/2)态的结合能比∑^*△(ST=0 5/2)态的结合能大.
We study the structure of possible ∑^*△(ST=0 5/2) and ∑^*△(ST=3 1/2) dibaryons with strangeness - 1 in the extended chiral SU(3) quark nodel. The chiral SU(3) quark model and the extended chiral SU(3) quark model offer totally different mechanisms of short range interactien. In the extended chiral SU(3) quark model,∑^*△(ST=0 5/2) and ∑^*△(ST=3 1/2) are still the bound states, but the binding energy of ∑^*△(ST=3 1/2) state is larger than that of ∑^*△(ST=0 5/2) state.