In this work we study the production of $K^*(4307)$ in $B$ decays by determining the $J/\psi\pi^{+(0)}K^{0}$ and $J/\psi \pi^- K^+$ invariant mass distributions of the processes $B^+\to J/\psi \pi^+\pi^0 K^0$ and $B^+\to J/\psi \pi^+\pi^- K^+$, respectively. Such $K^*(4307)$ has been recently predicted as a three-body state originated from the dynamics involved in the $K D\bar D^*$ system, with the $KD$ subsystem forming the $D^{*}_{s0}(2317)$ in isospin 0, and the $D\bar D^*$ subsystem generating the $X(3872)$ in isospin 0 and the $Z_c(3900)$ in isospin 1. The hidden charm content of $K^*(4307)$ favors its decay to a state like $J/\psi\pi K$ and the study of $B$-decays with these particles in their final states can constitute a way of finding experimental evidences for such an exotic vector meson, whose width, in spite of its large mass, is still quite narrow (around 18 MeV).

中文翻译：

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B 中预测的 K*(4307) 的产生衰减

在这项工作中，我们通过确定 $J/\psi\pi^{+(0)}K^{0}$ 和 $J/\psi 来研究 $K^*(4307)$ 在 $B$ 衰减中的产生\pi^- K^+$ 过程的不变质量分布 $B^+\to J/\psi \pi^+\pi^0 K^0$ 和 $B^+\to J/\psi \pi^ +\pi^- K^+$，分别。这种 $K^*(4307)$ 最近被预测为源自 $KD\bar D^*$ 系统中涉及的动力学的三体状态，$KD$ 子系统形成 $D^{*} _{s0}(2317)$ in isospin 0，$D\bar D^*$子系统在isospin 0中生成$X(3872)$，在isospin 1中生成$Z_c(3900)$。隐藏的魅力内容$K^*(4307)$ 有利于其衰变到像 $J/\psi\pi K$ 这样的状态，并且研究 $B$-这些粒子处于最终状态时的衰变可以构成一种寻找实验证据的方法这样一个奇异的矢量介子，尽管它的质量很大，但它的宽度，