重夸克有效理论中$\varXi_Q-\varXi_Q'$的混合角
Mixing Angle of $\varXi_Q-\varXi_Q'$ in Heavy Quark Effective Therory
摘要：
重夸克有效理论提供了一个系统的方法来估计重夸克中强子态的混合角，例如粲夸克（c）和底夸克（b）。用这种方法可以估计出重子$\varXi_Q-\varXi_Q'$的混合角。发现$\varXi_Q$和$\varXi_Q'$之间的混合角对于$Q = b$由$θ_b = 4.51^{\circ} \pm 0.79 ^{\circ}$给出，对于$Q = c$由$θ_c = 8.12^{\circ} \pm 0.80 ^{\circ}$给出。
英文摘要：
The Heavy Quark Effective Theory provides a systematic method to estimate a mixing angle of hadron states in a heavy quark, such as the charm quark (c) and the bottom quark (b). By using this method, the mixing angle of the baryons $\varXi_Q-\varXi_Q'$ can be estimated. It is found that the mixing angle between $\varXi_Q$ and $\varXi_Q'$ is given by $θ_b = 4.51^{\circ} \pm 0.79 ^{\circ}$ for $Q = b$ case and $θ_c = 8.12^{\circ} \pm 0.80 ^{\circ}$ for $Q = c$ case.
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