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arXiv 2109.00153hep-phhep-ex
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$D_{s}^{+} \rightarrow K^{+} K^{-} π^{+}$衰变的研究

Study of $D_{s}^{+} \rightarrow K^{+} K^{-} π^{+}$ decay

Zhong-Yu Wang, Jing-Yu Yi, Zhi-Feng Sun, C. W. Xiao

摘要:

本文基于手征么正方法,在夸克水平上考虑了$W$的外发射和内发射机制,并在末态相互作用下对$D_{s}^{+} \rightarrow K^{+} K^{-} π^{+}$衰变进行了理论研究.仅考虑$S$ -波中的$f_0(980)$、$P$ -波中的$\bar {K}^{*}(892)^{0}$和$ϕ(1020)$三个共振贡献,就可以很好地描述BESIII合作组最近的实验数据,其中发现$S$ -波的贡献很小.此外,我们还计算了相应的分支分数,与BESIII合作组和粒子数据组的结果一致。

英文摘要:

We investigate the $D_{s}^{+} \rightarrow K^{+} K^{-} π^{+}$ decay theoretically with the final state interactions, which is based on the chiral unitary approach and takes into account the external and internal $W$-emission mechanisms at the quark level. Only considering three resonances contributions, the $f_0(980)$ in $S$-wave, the $\bar {K}^{*}(892)^{0}$ and $ϕ(1020)$ in $P$-wave, one can make a good description of the recent experimental data from BESIII Collaboration, where the contribution from $S$-wave is found to be small. Besides, we also make a calculation of the corresponding branching fractions, which are consistent with the results of BESIII Collaboration and Particle Data Group.

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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