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The structure of the 5q configuration states with strangeness S=+1 is further studied in the chiral SU(3) quark model based on our previous work. We calculate the energies of fifteen low configurations of the 5q system, four lowest configurations of Jπ=12− with 4q partition [4]orb(0s4)[31]σf, four of Jπ=12+ with 4q partition [31]orb(0s30p)[4]σf and seven of Jπ=12+ with 4q partition [4]orb(0s30p)[31]σf...
The structure of the pentaquark state uudds is studied in the chiral SU(3) quark model as well as in the extended chiral SU(3) quark model, in which the vector meson exchanges are included. The lowest four configurations of J π =12 - and four of J π =12 + for the 5 quark cluster are considered. The results show that the isospin T=0 state is always the lowest one for...
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