论文标题
$ b^{（*）} k^{（*）} $ nature的异国分子膜状态
Exotic molecular meson states of $B^{(*)} K^{(*)}$ nature
论文作者
论文摘要
我们从理论上评估了开放底部和奇怪的系统$ \ bar b \ bar k $，$ \ bar b^*\ bar k $，$ \ bar b \ bar b \ bar k^*$和$ \ bar b^*\ bar b^*\ bar k^*$寻找可能与exotic non-quark-quark-ant quark-antiquark mesons可能相对应的状态，因为他们将与exotic non-quark-quark-antiquark mesons相对应。 S波散射矩阵通过Bethe-Salpeter方程来评估实现单位性，并从接触和媒介中膜交换机制中获得了潜在的内核。所需的顶点是由拉格朗日人提供的，这些拉格朗日是从隐藏仪表对称方法的合适扩展中提供的。我们在iSospin 0相互作用的各个阈值下面找到了两极，并通过包括虚构部分的主要来源来评估不同所获得的状态的宽度，这是$ b^*\ tobγ$在$ \ bar b b^*\ bar k $ channels中的bγ$衰减，$ k^*\ to $ k^*to to bar bar bar with a $ k k $ a $ k k $，以及$ k^$，以及$ k^$，以及$ k^$ and $ k^*$，此$ \ b b^*\ bar k $中间状态$ \ bar b^*\ bar k^*$ channels。
We evaluate theoretically the interaction of the open bottom and strange systems $\bar B\bar K$, $\bar B^* \bar K$, $\bar B\bar K^*$ and $\bar B^*\bar K^*$ to look for possible bound states which could correspond to exotic non--quark-antiquark mesons since they would contain at least one $b$ and one $s$ quarks. The s-wave scattering matrix is evaluated implementing unitarity by means of the Bethe-Salpeter equation, with the potential kernels obtained from contact and vector meson exchange mechanisms. The vertices needed are supplied from Lagrangians derived from suitable extensions of the hidden gauge symmetry approach to the bottom sector. We find poles below the respective thresholds for isospin 0 interaction and evaluate the widths of the different obtained states by including the main sources of imaginary part, which are the $B^*\to Bγ$ decay in the $\bar B^* \bar K$ channels, the $K^*\to K π$ in the channels involving a $K^*$, plus the box diagrams with $\bar B\bar K$ and $\bar B^*\bar K$ intermediate states for the $\bar B^*\bar K^*$ channels.
