论文标题
该过程的理论研究$ d^+ _ s \至π^+ k^0_s k^0_s $和$ f_0（1710）$的ISOVECTOR合作伙伴
Theoretical study of the process $D^+_s \to π^+ K^0_S K^0_S$ and the isovector partner of $f_0(1710)$
论文作者
论文摘要
我们提出了$ a_0（1710）$的理论研究，即$ f_0（1710）$的ISOVECTOR合作伙伴，在此过程中$ d^+ _ s \toπ^+ k^0_sk^0_s $。较弱的交互部分通过魅力的夸克衰减过程进行：$ c（\ bar {s}）\ to（s + \ bar {d} + u）（\ bar {s}）$ $真空量子数。 In addition to the contribution from the tree diagram of the $K^{*+} \to π^+ K^0_S$, we have also considered the $K^*\bar{K}^*$ final-state interactions within the chiral unitary approach to generate the intermediate state $a_0(1710)$, then it decays into the final states $K^0_SK^0_S$.我们发现，$ K^0_sk^0_s $和$π^+k^0_s $不变的质量分布的最新实验测量可以很好地复制，并且拟议的机制可以提供有关标量$ F_0（1710）$及其ISOVECTOR伙伴及其ISOVECTOR合作伙伴$ A_0（1710）$的有价值的信息。
We present a theoretical study of $a_0(1710)$, the isovector partner of $f_0(1710)$, in the process $D^+_s \to π^+ K^0_SK^0_S$. The weak interaction part proceeds through the charm quark decay process: $c(\bar{s}) \to (s + \bar{d} + u)(\bar{s})$, while the hadronization part takes place in two mechanisms, differing in how the quarks from the weak decay combines into $πK^*$ with a quark-antiquark pair $q\bar{q}$ with the vacuum quantum numbers. In addition to the contribution from the tree diagram of the $K^{*+} \to π^+ K^0_S$, we have also considered the $K^*\bar{K}^*$ final-state interactions within the chiral unitary approach to generate the intermediate state $a_0(1710)$, then it decays into the final states $K^0_SK^0_S$. We find that the recent experimental measurements on the $K^0_SK^0_S$ and $π^+K^0_S$ invariant mass distributions can be well reproduced, and the proposed mechanism can provide valuable information on the nature of scalar $f_0(1710)$ and its isovector partner $a_0(1710)$.
