从光前沿哈密顿算符得到的核子结构

Siqi Xu, C. Mondal, Yang Li, Xingbo Zhao, J. Vary
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引用次数: 1

摘要

利用基光前量子化(BLFQ)方法,得到了超前Fock扇区中核子的光前波函数(lfwf)。采用包含三维约束势和固定耦合的单胶子交换相互作用的光前有效哈密顿量,求解其质量本征态。然后,我们利用LFWFs计算了核子的轴向形状因子、横向电荷和磁化密度。轴向形状因子与实验数据一致。电荷密度和磁化密度在性质上与现象学拟合一致。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Nucleon structure from a light-front hamiltonian
We obtain the light-front wave functions (LFWFs) of the nucleon in the leading Fock sector representation using basis light-front quantization (BLFQ) approach. We adopt a light-front effective Hamiltonian, which includes a three-dimensional confining potential and a one-gluon exchange interaction with fixed coupling, and solve for it mass eigenstates. We then employ the LFWFs to compute the axial form factor and the transverse charge and magnetization densities for the nucleon. The axial form factor is found to be consistent with the experimental data. The charge and magnetization densities agree qualitatively with the phenomenological fits.
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