AI 中文总结
本研究针对D⁺→K̄⁰π⁺π⁰π⁰反应，从夸克层面提出两种机制，通过6个拟合参数实现了相关质量分布与实验数据的良好吻合。
AI 中文摘要
我们研究D⁺→K̄⁰π⁺π⁰π⁰反应，该反应在K̄⁰π⁰和π⁺π⁰的质量分布中分别呈现出K̄*⁰和ρ⁺两个清晰结构。研究从夸克层面展开，涉及外发射与内发射过程，通过强子化一对夸克产生一个矢量介子和两个赝标介子；同时考虑另一种无需夸克对强子化的机制，即直接产生K̄*⁰和ρ⁺。借助6个拟合数据的未知参数，我们能使K̄⁰π⁰和π⁺π⁰质量分布与实验数据高度吻合，其余无特殊结构的质量分布则达到定性吻合。
英文摘要
We study the $D^{+} \rightarrow \bar{K}^{0} π^{+} π^{0} π^{0}$ reaction, which shows two clear structures: the $\bar{K}^{*0}$ and $ρ^{+}$ in the $\bar{K}^{0} π^{0}$ and $π^{+} π^{0}$ mass distributions, respectively. The study is done starting from the quark level with external and internal emission and hadronizing a pair of quarks to produce a vector and two pseudoscalars. We also consider another mechanism, which does not require hadronization of quark pairs: the direct production of $\bar{K}^{*0}$ and $ρ^{+}$. With the help of six unknown parameters which are fitted to the data, we are able to get a very good agreement with experimental data for the $\bar{K}^{0} π^{0}$ and $π^{+} π^{0}$ mass distributions and a qualitative one for the rest of mass distributions which do not show any particular structure experimentally.
Comments9 pages, 7 figures
