论文标题
双底重子的质谱
Mass spectra of double-bottom baryons
论文作者
论文摘要
基于相对论夸克模型和无限移动的高斯基函数方法，我们系统地研究了双底底巴里子的质谱。在能量似乎低于其他激发模式的$ρ$模板中，我们获得了允许的量子状态，并对$ξ_{bb} $和$ω__{bb} $ family的质谱进行系统研究。我们分析了均方根半径和夸克径向概率密度分布，以深入了解重型重子的结构。同时，质谱使我们能够在$（j，m^{2}）$ plane中成功构建regge轨迹。我们还预测了双底重子的基质量的质量，并讨论了光谱的结构与其他理论方法的结构之间的差异。最后，显示了双底底部光谱的壳结构，从中可以从中获得鸟类的质量视图。
Based on the relativistic quark model and the infinitesimally shifted Gaussian basis function method, we investigate the mass spectra of double bottom baryons systematically. In the $ρ$-mode which appears lower in energy than the other excited modes, we obtain the allowed quantum states and perform a systematic study of the mass spectra of the $Ξ_{bb}$ and $Ω_{bb}$ families. We analyze the root mean square radii and quark radial probability density distributions to deeply understand the structure of the heavy baryons. Meanwhile, the mass spectra allow us to successfully construct the Regge trajectories in the $(J,M^{2})$ plane. We also predict the masses of the ground states of double bottom baryons and discuss the differences between the structures of our spectra and those from other theoretical methods. At last, the shell structure of the double bottom baryon spectra is shown, from which one could get a bird's-eye view of the mass spectra.
