论文标题
基于tamm-dancoff近似的QCD方法的底部融合的介子光谱
The bottom-charmed meson spectrum from a QCD approach based on Tamm--Dancoff approximation
论文作者
论文摘要
在这项工作中，通过有效的库仑量表QCD Hamiltonian研究了底部的梅森光谱。使用tamm-dancoff近似来估计具有量子数字的低凹和径向激发的$ b_c $状态$ j^p = 0^p = 0^{ - }，0^{+}，1^{ - }，1^{ - }，1^{+} {+}，2^{+}，2^{+}，2^{2^{2^{ - } $。特别是，我们分析了合并有效的横向超细相互作用和旋转混合的影响。还检查了$ s $和$ p $ - 波状状态的Regge轨迹和超精细分裂。将数值结果与其他模型的可用实验数据和理论预测进行了比较。
The bottom-charmed meson spectrum is studied in this work via an effective version of the Coulomb gauge QCD Hamiltonian. The Tamm-Dancoff approximation is employed to estimate the energies of the low-lying and radial-excited $B_c$ states with quantum numbers $J^P = 0^{-}, 0^{+}, 1^{-}, 1^{+}, 2^{+}, 2^{-}$. In particular, we analyze the effects of incorporating an effective transverse hyperfine interaction and spin mixing. The Regge trajectories and hyperfine splitting of both $S$- and $P$-wave states are also examined. The numerical results are compared with available experimental data and theoretical predictions of other models.
