论文标题
Charmed Meson到Light Stailor Mesons的半衰减衰减
Semileptonic Decays of Charmed Mesons to Light Scalar Mesons
论文作者
论文摘要
在协方差夸克模型的框架内，我们计算了$ d $和$ d_s $ ersons的过渡形式，从而衰减到灯标量梅森斯$ f_0（980）$和$ a_0（980）$。然后将过渡形式因素用于计算半抑制的分支部分。我们研究了频道，即$ d _ {（s）}^+ \ to f_0（980）\ ell^+ n+ n+ v+ g el $和$ d \ to a_0（980）\ ell^+ el^+ g^+ g ell $ for $ \ for $ \ for $ \ for $ \ ell = ell = e = e $ and $μ$。为了计算半分支分支分数，我们将$ A_0（980）$ MESON视为常规的Quark-Antiquark结构，而$ f_0（980）$ MESON是$ s \ bar {s} $和Light Quark-Antiquark Pairs的混合。我们的发现被发现支持最近的BESIII数据。
Within the framework of covariant confined quark model, we compute the transition form factors of $D$ and $D_s$ mesons decaying to light scalar mesons $f_0(980)$ and $a_0(980)$. The transition form factors are then utilized to compute the semileptonic branching fractions. We study the channels namely, $D_{(s)}^+ \to f_0(980) \ell^+ ν_\ell$ and $D \to a_0(980) \ell^+ ν_\ell$ for $\ell = e$ and $μ$. For computation of semileptonic branching fractions, we consider the $a_0(980)$ meson to be the conventional quark-antiquark structure and the $f_0(980)$ meson as the admixture of $s\bar{s}$ and light quark-antiquark pairs. Our findings are found to support the recent BESIII data.
