论文标题

$λ$和$λ_c$及其isospin三胞胎baryons的基础轻量量化方法

Basis light-front quantization approach to $Λ$ and $Λ_c$ and their isospin triplet baryons

论文作者

Peng, Tiancai, Zhu, Zhimin, Xu, Siqi, Liu, Xiang, Mondal, Chandan, Zhao, Xingbo, Vary, James P.

论文摘要

我们获得$λ$,$λ_C$的质量,电磁特性和Parton分布功能(PDFS)及其Isospin Triplet Baryons,即$σ^0 $,$σ^+$,$σ^+$,$σ^ - $和$σ_c^0 $ c^0 $,$σ_c^+$σ_+,$σ_c^+$σ_+ham frife ham frife ham ham frife ham在主要的Fock扇区中,基于光量量化框架。这些重子的光线函数由有效的哈密顿式的特征态,由三维限制势和与固定耦合的一粘合交换相互作用。在我们的方法中,这些重子的质量在实验范围内,而同胞素依赖性的质量差异太小。同时,电磁特性与可用的实验数据,晶格QCD模拟和其他理论计算一致。我们还提出了Gluon和Sea Quark PDF,它们是根据价夸克分布的QCD演变而动态生成的。

We obtain the masses, the electromagnetic properties, and the parton distribution functions (PDFs) of $Λ$, $Λ_c$, and their isospin triplet baryons, i.e, $Σ^0$, $Σ^+$, $Σ^-$ and $Σ_c^0$, $Σ_c^+$, $Σ_c^{++}$ from a light-front effective Hamiltonian in the leading Fock sector in the basis light-front quantization framework. The light-front wave functions of these baryons are given by the eigenstates of the effective Hamiltonian consisting of a three-dimensional confinement potential and a one-gluon exchange interaction with fixed coupling. The masses of these baryons in our approach are in the experimental range while isospin-dependent mass differences are too small. Meanwhile, the electromagnetic properties are in agreement with the available experimental data, the lattice QCD simulations, and the other theoretical calculations. We also present the gluon and the sea quark PDFs, which we generate dynamically from the QCD evolution of the valence quark distributions.

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