论文标题
魅力和美容质谱的研究，$ b _ {（s，c）} $和$ {b_c} \ to j/ψ（{η_c}） + p（v）$的半衰减衰减。
Study of charm and beauty mass spectra, semileptonic decays of $B_{(s,c)}$ and ${B_c} \to J/ψ({η_c}) + P(V)$ in a phenomenological potential model
论文作者
论文摘要
使用非相关的潜在模型，我们获得了质谱，松弛衰减常数以及Isgur-Wise函数的参数，以获得美和魅力介子。使用计算的数量，我们调查纯leptonic衰变为$ b^+$，$ b^{*} $，$ b_c^+$，半衰减衰减模式$ {b _ {（s）}} \ to {d _ {d _ {（s）}}}} l c $ and $ { Lepton通道$ E，μ，τ$，并获得相应的分支分数。还研究了$ \ bar b _ {（s）}^{} \ to d _ {（s）}^*l \barν$ transitions。接下来，我们将自旋零和旋转$ b_c $的旋转形式用于计算$ {b_c} \ $ {b_c} \的非律师分支率，以j/ψ（{η_c}） + p（v）$，其中$ p $和$ v $ and $ v $ and $ d_q^{* - d_q^{* - * - } $ vector meson and $ d_q $ d_q $ d_q $ d_q n和pse n和pse n和pse pse n和pse n;发现我们的结果与实验和理论结果中获得的结果一致。
Using a non-relativistic potential model, we obtain the mass spectra, leptonic decay constants, and parameters of the Isgur-Wise function for the beauty and charm mesons. With the calculated quantities, we investigate purely leptonic decays of $B^+$, $B^{*}$, $B_c^+$, semileptonic decay modes ${B_{(s)}} \to {D_{(s)}}lν$ and ${B_c} \to {η_c}\ell \bar ν$ for three lepton channels $e,μ,τ$, and obtain the corresponding branching fractions. $\bar B_{(s)}^{} \to D_{(s)}^*l\bar ν$ transitions are also studied. Next, we apply the form factors for spin zero and spin one transitions of $B_c$ to calculate the nonleptonic branching ratios of ${B_c} \to J/ψ({η_c}) + P(V)$, where $P$ and $V$ stand for the $D_q^{* - }$ vector meson and the $D_q$ pseudoscalar meson, respectively. Our results are found to be in agreement with those obtained in the experimental and theoretical results.
