论文标题
全息QCD的$ J/ψ$接近阈值：A和D引力形式
$J/ψ$ near threshold in holographic QCD: A and D gravitational form factors
论文作者
论文摘要
核子上$ J/ψ$的衍射光生效主要是由于所有$ \ sqrt {s} $所致。在全息QCD中（大量颜色和强$^\ Prime $ t Hooft耦合），这些交换是在阈值附近的Gravitons捕获的，它们的Pomeron形式渐近。我们根据新的晶格数据重新审视对A和D重力形式因素的全息分析，并使用它们来完善我们对阈值接近$ j/ψ$的光生源的预测，并与Gluex数据进行比较。我们使用这些结果来估计细胞核的标量和质量半径，并描述跨细胞核的重力和剪切。
The diffractive photoproduction of $J/Ψ$ on a nucleon, is mostly due to gluonic exchanges at all $\sqrt{s}$. In holographic QCD (large number of colors and strong $^\prime$t Hooft coupling), these exchanges are captured by gravitons near threshold, and their Reggeized Pomeron form asymptotically. We revisit our holographic analysis of the A and D gravitational form factors in light of the new lattice data, and use them to refine our predictions for the photoproduction of $J/Ψ$ near threshold, and the comparison to the GlueX data. We use these results to estimate the scalar and mass radii of the nucleon, and describe the gravitational pressure and shear across a nucleon.
