标题： 重介子超精细分裂：一个完整的$1/m_Q$计算 显示英文标题

标题： Heavy Meson Hyperfine Splitting: A Complete $1/m_Q$ Calculation

摘要： 超精细分裂$\Delta_D=(m_{D^*_s}-m_{D_s})-(m_{D^{*+}}-m_{D^+})$和$\Delta_B=(m_{B^*_s}-m_{B_s})-(m_{B^{*0}}-m_{B^0})$在一个具有手征性、重味和自旋对称性的有效拉格朗日量框架中进行分析，这些对称性被一组完整的的一阶项显式破坏。 在这些项中，导致耦合$\gis$和$\gi$之间差异的项在QCD求和规则方法中进行了评估。 它们对$\Delta_D$和$\Delta_B$的贡献在数量上平衡了之前估计的手征效应，与实验数据有很好的一致，解决了重夸克理论中的一个疑似谜题。 显示英文摘要

摘要： The hyperfine splittings $\Delta_D=(m_{D^*_s}-m_{D_s})-(m_{D^{*+}}-m_{D^+})$ and $\Delta_B=(m_{B^*_s}-m_{B_s})-(m_{B^{*0}}-m_{B^0})$ are analyzed in the framework of an effective lagrangian possessing chiral, heavy flavour and spin symmetries, explicitly broken by a complete set of first order terms. Among these terms, those responsible for the difference between the couplings $\gis$ and $\gi$ are evaluated in the QCD sum rules approach. Their contribution to $\Delta_D$ and to $\Delta_B$ appears to quantitatively balance previously estimated chiral effects nice agreement with the experimental data, solving a suspected puzzle for heavy quark theory.