标题： 低激发八重态重子的广义部分子分布函数具有非零偏斜度 显示英文标题

标题： Generalized parton distributions for low-lying octet baryons with non-zero skewness

摘要： 我们通过假设在横向和纵向空间中夸克味道之间的电荷-同位旋对称性，对低能八重态重子成员进行了结构分析。 使用光锥旁观二夸克模型，我们研究了八重态重子的电磁形式因子，并将其与现有数据进行了比较。 通过将质子的价$u$夸克的部分子分布函数（PDF）与CTEQ5L参数化结果进行比较，估算了模型尺度。 还展示了八重态重子之间非零偏斜度的PDF和广义部分子分布函数（GPD）的比较分析。 对深度虚拟康普顿散射振幅关于偏斜度的傅里叶变换进一步被用于研究在保不变纵向位置空间中的衍射图样。 显示英文摘要

摘要： We have performed the structural analysis of low-lying octet baryon members by assuming charge-isospin symmetry among quark flavors in transverse and longitudinal space. Using the light-cone spectator diquark model, we have investigated the electromagnetic form factors of the octet baryons and have compared them with the available data. Model scale has been estimated by comparing the valence $u$ quark's parton distribution function (PDF) of proton with the result of CTEQ5L parameterization. A comparative analysis of PDFs and generalized parton distributions (GPDs) for non-zero skewness among octet baryons has also been demonstrated. Fourier transform of the deeply virtual Compton scattering amplitude with respect to skewness has been further applied to study the diffraction patterns in the boost-invariant longitudinal position space.