论文标题
将X（2240）与Y（2175）调和
Reconciling the X(2240) with the Y(2175)
论文作者
论文摘要
在目前的工作中，我们将$ e^+ e^ - \的横截面重新分配给k^+ k^ - $，其中BES III合作报告了新的结构$ x（2240）$。通过包括直接耦合和媒介中间过程之间的干扰，我们发现$ x（2240）$的质量和宽度分别为$ 2197.4 \ pm 4.4 $ meV和$ 75.6 \ pm 7.2 $ 7.2 $ MEV，与$ y（$ y（$ y）的PDG平均值相当一致，因此，$ y（2175）与$ y（2175）$相同。
In the present work, we reanalyzed the cross sections for $e^+ e^- \to K^+K^-$, where a new structure $X(2240)$ was reported by BES III Collaboration. By including the interference between the direct coupling and vector meson intermediate processes, we find the mass and width of $X(2240)$ are $2197.4\pm 4.4$ MeV and $75.6\pm 7.2 $ MeV, respectively, which are well consistent with the PDG average values of the resonance parameters for $Y(2175)$, thus, we conclude that the $X(2240)$ should be the same state as the $Y(2175)$.
