在$N πK $系统中寻找奇异态
Searching for exotic states in the $N πK $ system
摘要：
我们研究了$N πK$系统，研究了奇异+1共振存在的可能性.形式主义包括解决Faddeev方程与$N π$，$πK $和$K N$ $t$ -矩阵从手征动力学。同样的形式主义，导致在1400-2000 MeV的能量区域中在相应的三体$S$ = -1通道中发现几个$1/2^+$共振，导致在1700 MeV附近只有一个宽的隆起，具有同位旋0。同位旋1和2组态的振幅没有共振结构。
英文摘要：
We study the $N πK$ system in order to investigate the possibility of existence of strangeness +1 resonance(s). The formalism consists of solving the Faddeev equations with the $N π$, $πK $ and $K N$ $t$-matrices obtained from chiral dynamics. The same formalism, which leads to the finding of several $1/2^+$ resonances in the corresponding three-body $S$ = -1 channels in the 1400-2000 MeV energy region, results into only one broad bump around 1700 MeV with isospin 0. The amplitudes in isospin 1 and 2 configuration do not have any resonant structure.
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