论文标题
$ x_0（2900）$和$ x_1（2900）$的基于蒙特卡洛的QCD和规则分析
Monte-Carlo Based QCD Sum Rules Analysis of $X_0(2900)$ and $X_1(2900)$
论文作者
论文摘要
由于最近发现的完全开放风味的异国情调状态$ x_0（2900）$和$ x_1（2900）$的动机，我们通过LHCB协作，通过QCD SUM规则方法研究了这些异国情调状态的可能解释。我们通过传统的QCD总规则分析和基于蒙特卡洛的分析来计算质量和衰减常数。 $ x_0（2900）$和$ x_1（2900）$分别以分子和diquark-antidiquark tetraquark图片进行了研究。获得的质量结果与实验中观察到的质量非常吻合。我们还在质量和衰减常数分布的QCD总规则中进行了基于蒙特卡洛的分析，以调查$ x_0（2900）$和$ x_1（2900）$的结构的可能作业。
Motivated by the very recent discovery of fully open-flavor exotic states $X_0(2900)$ and $X_1(2900)$ by the LHCb Collaboration, we study possible interpretations of these exotic states by QCD Sum Rules method. We have calculated mass and decay constant by traditional QCD Sum Rules analysis and Monte-Carlo based analysis. $X_0(2900)$ and $X_1(2900)$ are studied in molecular and diquark-antidiquark tetraquark pictures, respectively. Obtained mass results agree well with the masses observed in the experiment. We also made a Monte-Carlo based analysis within QCD Sum Rules for the mass and decay constant distributions to investigate the possible assignments for the structures of $X_0(2900)$ and $X_1(2900)$.
