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arXiv 1509.03367hep-ph
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$χ_{c0}(1P)$衰变为$\barΣ~Σπ$寻找$\bar K N$阈值附近的PDMATHAAC,$1/2^-$重子态

$χ_{c0}(1P)$ decay into $\barΣ~Σπ$ in search of an $I=1$, $1/2^-$ baryon state around $\bar K N$ threshold

En Wang, Ju-Jun Xie, Eulogio Oset

摘要:

基于手征么正方法,考虑末态介子-重子对的$πΣ$和$π\barΣ$末态相互作用,对末态介子-重子对的$χ_{c0}(1P)\to\barΣΣπ$衰变过程进行了理论研究.我们发现,该过程过滤的$πΣ$通道中的同位旋$I=1$和提供一个反应,以测试存在的$I=1$状态与奇异$S=-1$和自旋宇称$J^p=1/2^-$附近的$\bar KN$阈值的一些理论预测和一些实验支持。

英文摘要:

We present the theoretical study of the process $χ_{c0}(1P)\to\barΣΣπ$ decay, by taking into account the $πΣ$ and $π\barΣ$ final state interactions of the final meson-baryon pair based on the chiral unitary approach. We show that the process filters the isospin $I=1$ in the $πΣ$ channel and offers a reaction to test the existence of an $I=1$ state with strangeness $S=-1$ and spin-parity $J^p=1/2^-$ around the $\bar KN$ threshold predicted by some theories and supported by some experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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