论文标题

动态diquark模型中的异国黑龙的绝热表示

Diabatic Representation of Exotic Hadrons in the Dynamical Diquark Model

论文作者

Lebed, Richard F., Martinez, Steven R.

论文摘要

我们应用了绝热的形式主义,这是原子物理学固有的绝热近似(BO)方法的扩展,以在异国情调的多quark Hadrons及其附近的Di-Hadron阈值之间混合。使用动力学diquark模型获得了不受干扰的BO本特征,而绝热计算则引入了这些状态和阈值状态之间的混合电势。我们在数值上求解了所得的schrödinger方程,以用于开放和封闭陌生的隐藏链链四夸克,以获得物理质量特征值,并探索特征征的二 - 二龙状态含量和空间范围。作为一个明确的例子,$ x(3872)$出现,具有主导的$ d^0 \ bar d^{*0} $组件,但还包含一个相当大的diquark-antidiquark组件,可以对其辐射衰减的宽度产生重大贡献,并且该组件还可以与其他基于Diquark的Exotic Hadrons Hadrons Hadrons Be Be Be Bebalix相比。

We apply the diabatic formalism, an extension of the adiabatic approximation inherent to the Born-Oppenheimer (BO) approach of atomic physics, to the problem of mixing between exotic multiquark hadrons and their nearby di-hadron thresholds. The unperturbed BO eigenstates are obtained using the dynamical diquark model, while the diabatic calculation introduces a mixing potential between these states and the threshold states. We solve the resulting coupled Schrödinger equations numerically for hidden-charm tetraquarks of both open and closed strangeness to obtain physical mass eigenvalues, and explore the di-hadron state content and spatial extent of the eigenstates. As an explicit example, $X(3872)$ emerges with a dominant $D^0 \bar D^{*0}$ component, but also contains a considerable diquark-antidiquark component that can contribute significantly to its radiative decay widths, and this component also generates a full multiplet of other diquark-based exotic hadrons to be compared with experiment.

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