论文标题
$ b_c（ns）$和$ b^*_ c（ns）$的衰减常数
The Decay constants of $B_c(nS)$ and $B^*_c(nS)$
论文作者
论文摘要
低率的ns（ns）$和$ b_c（ns）$和$ b^*_ c（ns）$带有$ n \ leq 3 $的衰减常数，即$ b_c（ns）$和$ b^*_ c（ns）$，是在非率主义夸克模型中计算的。考虑了强相互作用的运行耦合，并且仔细考虑了由于参数不同和失去洛伦兹协方差而引起的不确定性。作为副产品，附录中给出了低谎言S波charmon和底部状态的衰减常数。
The decay constants of the low lying S-wave $B_c$ mesons, i.e. $B_c(nS)$ and $B^*_c(nS)$ with $n\leq 3$, are calculated in the nonrelativistic quark model. The running coupling of the strong interaction is taken into account, and the uncertainties due to varying parameters and losing Lorentz covariance are considered carefully. As a byproduct, the decay constants of the low lying S-wave charmonium and bottomium states are given in the appendixes.
