arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2202.11973hep-ph
收藏

在$\bar{B}^0 \to D^{(*)+} K^- K^{(*)0} $反应中寻找外来的$X_0(2866)$及其$J^P=1^+$伙伴

Looking for the exotic $X_0(2866)$ and its $J^P=1^+$ partner in the $\bar{B}^0 \to D^{(*)+} K^- K^{(*)0} $ reactions

L. R. Dai, R. Molina, E. Oset

摘要:

我们提出了两个反应,$\bar{B}^0 \to K^0 D^{+} K^-$和$\bar{B}^0 \to K^{*0} D^{*+} K^-$,已经在百丽测量,看看$J^P=0^+$,$X_0(2866)$状态和$1^+$合作伙伴的分子$D^*\bar{K}^*$的性质,通过查看$D^+ K^-$和$D^{*+} K^-$不变的质量分布,分别。非常清晰的峰的背景进行预测,并评估这些国家的生产的分支比,以促进任务,确定所需的统计数据,为他们的观察。来自不同反应的事件的累积的$K^{*0} K^-$质量分布已经可用的事实表明,人们离获得所需的统计数据以看到$D^{(*)+} K^-$质量分布中的峰不远了,到目前为止还没有分析。

英文摘要:

We propose two reactions, $\bar{B}^0 \to K^0 D^{+} K^-$ and $\bar{B}^0 \to K^{*0} D^{*+} K^-$, already measured at Belle, to look into the $J^P=0^+$, $X_0(2866)$ state and a $1^+$ partner of molecular $D^*\bar{K}^*$ nature, by looking at the $D^+ K^-$ and $D^{*+} K^-$ invariant mass distributions, respectively. Very clear peaks over the background are predicted and the branching ratios for the production of these states are evaluated to facilitate the task of determining the needed statistics for their observation. The fact that the $K^{*0} K^-$ mass distribution from accumulation of events of different reactions is already available, indicates that one is not far away from having the needed statistics to see peaks in the $D^{(*)+} K^-$ mass distributions, so far not yet analyzed.

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。

↑