论文标题
强的两脑衰减光和迷人的媒介介子
Strong two-meson decays of light and charmed vector mesons
论文作者
论文摘要
我们计算出$ρ\至ππ$，$ ϕ \ to kk $，$ k^* \tokπ$和$ d^* \ ddπ$的强衰减耦合，以统一和一致的方法基于脉冲近似，非努力解决方案的不稳定解决方案和Quark-gap-gap-gape and poincare bee and the doccaremiant vere的贝特·贝特·贝特（Poincare）的贝特·贝特（Pooincare）贝特·贝特（Poincare）贝特普（Ampeter）的以及介子。 特别是，我们获得了$ g_ {d^*\！dπ} = 17.24^{+3.06} _ { - 2.30} $与Cleo的实验值一致，这对应于重型向量和重型矢量和pseudscalar mesons of $ \ hat g = = 0.58^{+0.10} _ { - 0.08} $。
We calculate the strong decay couplings for $ρ\to ππ$, $ϕ\to KK$, $K^* \to Kπ$ and $D^*\to Dπ$ in a unified and consistent approach based on the impulse approximation, nonperturbative solutions of the quark-gap equation and the Poincaré invariant Bethe-Salpeter amplitudes of vector and pseudoscalar mesons. In particular, we obtain the coupling $g_{D^*\!Dπ} = 17.24^{+3.06}_{-2.30} $ in very good agreement with the experimental value by CLEO, which corresponds to a strong effective coupling between heavy vector and pseudoscalar mesons to the pion of $\hat g = 0.58^{+0.10}_{-0.08}$.
