论文标题
使用重夸克有效理论的B研究B，BS介子
Study of B, Bs mesons using heavy quark effective theory
论文作者
论文摘要
受到本文{\ bf部门的较低统计信息的启发，我们}计算了质量和激发$ b $和$ b_s $ ersons的强烈衰减，这是重型夸克有效理论（HQET）的框架。 Using an effective chiral Lagrangian approach based on heavy quark spin-flavor and light quark chiral symmetry, we explore the flavor independent parameters $Δ_F^{(c)} = Δ_F^{(b)}$ and $λ_F^{(c)} = λ_F^{(b)}$ to calculate the masses of experimentally unknown bottom mesons.我们的预测与可用的实验结果和其他理论研究一致。他们对基态底部膜的强烈衰减加光伪cal膜是根据耦合$ g_h $，$ g_s $，$ g_t $，$ g_x $，$ g_x $，$ g_y $和$ g_r $的平方计算的。联轴器的加权平均值$ g_h $，$ g_s $和$ g_t $ {\ bf是在魅力扇区中获得的[phys。 Rev. d \ textbf {86}，054024（2012）]通过将计算出的衰减宽度与实验测量拟合，本研究将用于分析激发式开放式膜的强烈衰变。此外，还可以预测衰减率的比率，可以用未来的实验数据来对抗。
Inspired by the lower statistical information in the bottom {\bf sector, in this paper, we} calculate the masses and the strong decays of excited $B$ and $B_s$ mesons in the framework of heavy quark effective theory (HQET). Using an effective chiral Lagrangian approach based on heavy quark spin-flavor and light quark chiral symmetry, we explore the flavor independent parameters $Δ_F^{(c)} = Δ_F^{(b)}$ and $λ_F^{(c)} = λ_F^{(b)}$ to calculate the masses of experimentally unknown bottom mesons. Our predictions are consistent with the available experimental results and other theoretical studies. Their strong decay to the ground state bottom mesons plus light pseudoscalar mesons is calculated in terms of the square of the couplings $g_H$, $g_S$, $g_T$, $g_X$, $g_Y$, and $g_R$. The weighted average value of the couplings $g_H$, $g_S$ and $g_T$ {\bf is} obtained in the charm sector [Phys. Rev. D \textbf{86}, 054024 (2012)] by fitting the calculated decay widths with experimental measurements, which will be used in the present study to analyze the strong decays of excited open bottom mesons. Moreover, the ratio of the decay rates is also predicted, which can be countered with future experimental data.
