Dynamical calculations are performed for all members of the flavor antidecuplet to which the pentaquark $\Theta^+$ belongs. The framework is a constituent quark model where the short-range interaction has a flavor-spin structure. From symmetry considerations the lowest state acquires a positive parity. By fitting the mass of $\Theta^+$ of minimal content $uudd\bar{s}$, the mass of $\Xi^{--}$, of minimal content $ddss \bar{u}$, is predicted to be approximately 1960 MeV. It is shown that the octet and antidecuplet states with the same quantum numbers mix ideally due to SU(3)$_F$ breaking.
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机译：对五夸克$ \ Theta ^ + $所属的风味抗腐小食品的所有成员执行动态计算。该框架是一个组成性的夸克模型，其中短距离交互具有自旋结构。从对称性的考虑，最低状态获得正的奇偶校验。通过拟合最小内容$ uudd \ bar {s} $的$ \ Theta ^ + $的质量，可以预测最小内容$ ddss \ bar {u} $的$ \ Xi ^ {-} $的质量大约是1960 MeV结果表明，由于SU（3）$ _ F $的破坏，具有相同量子数的八位位组和反十进制状态理想地混合。
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