Year: 2024
Type: preprint
Abstract: In this paper, we evaluate the electromagnetic and gravitational form factors as well as the corresponding generalized parton distributions of the electron using the Basis Light-front Quantization approach to QED. We compare our results with those from light-front perturbation theory. We adopt a novel basis with its scale depending on the constituents' longitudinal momentum fraction. We show that this basis improves convergence of the form factors with increasing basis dimension, compared to that calculated in the original basis with fixed scale. These results both validate the BLFQ approach and provide guidance for its efficient implementation in solving light-front Hamiltonian mass eigenstates for more complex systems in QED and QCD.
Source: arXiv (Cornell University)
Authors: Meng, Lingdi, Tang, Shuo, Hu, Zhi, Wang, Guo-Li, Li, Yang, Zhao, Xingbo, Vary, James P.
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: U.S. Department of Energy, National Energy Research Scientific Computing Center, National Natural Science Foundation of China, Chinese Academy of Sciences, Natural Science Foundation of Gansu Province, University of Science and Technology of China, Office of Science, Lawrence Berkeley National Laboratory
OpenAlex ID: W4399116236