论文标题
单个重型重子的系统分析$λ_{q} $，$σ_{q} $和$ω__{q} $
Systematic analysis of single heavy baryons $Λ_{Q}$, $Σ_{Q}$ and $Ω_{Q}$
论文作者
论文摘要
受到搜索重型重子的实验进展的巨大进展的动机，我们系统地分析了单个重型重子的质谱和均方根半径$λ_{q} $，$σ_{q} $和$ω________{q} $。质谱的计算是在Godfrey-Isgur（GI）相对夸克模型的框架工作中进行的，该模型被视为三体夸克系统。我们的结果表明，带有$λ$ - 码的单个重型bary子的质量低于$ρ$ -Mode和$λ$ - $ - $ρ$混合模式的质量，这表明最低状态由$λ$ -Mode主导。在这项研究的基础上，我们以$λ$兴奋的模式系统地计算了重子的质谱和均方根半径。使用这些预测的质谱，构建了（$ j $，$ m^{2} $）平面中的regge轨迹，并且通过线性拟合获得了斜率，斜率，Regge轨迹的截距。发现所有可用的实验数据都通过模型预测很好地复制，并且非常适合构建的regge轨迹。
Motivated by great progresses in experiments in searching for the heavy baryons, we systematically analyze the mass spectra and root mean square radius of single heavy baryons $Λ_{Q}$, $Σ_{Q}$ and $Ω_{Q}$. The calculations of the mass spectra are carried out in the frame work of Godfrey-Isgur (GI) relativized quark model, where the baryon is regarded as a three-body system of quarks. Our results show that the mass of single heavy baryon with $λ$-mode is lower than those of the $ρ$-mode and $λ$-$ρ$ mixing mode, which indicates that the lowest state is dominated by the $λ$-mode. Basing on this research, we systematically calculate the mass spectra and the root mean square radius of the baryons with $λ$ excited mode. With these predicated mass spectra, the Regge trajectories in the ($J$,$M^{2}$) plane are constructed, and the slopes, intercepts of the Regge trajectories are obtained by linear fitting. It is found that all available experimental data are well reproduced by model predictions and fit nicely to the constructed Regge trajectories.
