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Form factors and generalized parton distributions of heavy quarkonia in basis light front quantization

机译:基于光正向量化的重型Quarkonia的形式因素和广义Parton分布

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摘要

We calculate the electromagnetic (charge, magnetic, and quadrupole) form factors and the associated static moments of heavy quarkonia (charmonia and bottomonia) using the basis light front quantization (BLFQ) approach. For this work, we adopt light front wave functions (LFWFs) generated by a holographic QCD confining potential and a one-gluon exchange interaction with fixed coupling. We compare our BLFQ results with the limiting case of a single BLFQ basis state description of heavy quarkonia and with other available results. These comparisons provide insights into relativistic effects. Using the same LFWFs generated in the BLFQ approach, we also present the generalized parton distributions (GPDs) for selected mesons including those for radially excited mesons such as psi' and Upsilon'. Our GPD results establish the foundation within BLFQ for further investigating hadronic structure such as probing the spin structure of spin-one hadrons in the off-forward limit.
机译:我们使用基础光线量化(BLFQ)方法计算电磁(电荷,磁性和四极)形状因子和相关的Quarkonia(乍得和浓度)的相关静态矩。 对于这项工作,我们采用通过全息QCD限制潜力产生的光前波函数(LFWFS)和与固定耦合的单胶交换相互作用。 我们将BLFQ结果与重型Quarkonia的单一BLFQ基础数据描述和其他可用结果进行比较。 这些比较提供了对相对论效应的见解。 使用BLFQ方法中生成的相同LFWF,我们还为所选介子提供广泛的Parton分布(GPD),包括径向激励的椎间盘,如PSI'和Upsilon'。 我们的GPD结果在BLFQ内建立了基础,进一步调查了脊柱结构,如探测旋转旋转的旋转结构的旋转突出极限。

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