Positronium on the light front

Conference · Sat Aug 01 04:00:00 EDT 2020 · Hadron Spectroscopy and Structure: Proceedings of the XVIII International Conference

DOI:https://doi.org/10.1142/9789811219313_0093· OSTI ID:2278979

Fu, Kaiyu ^[1]; Zhao, Hengfei ^[2]; Zhao, Xingbo ^[2]; Vary, James P. ^[3]

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1. Chinese Academy of Sciences (CAS) (China); University of Chinese Academy of Sciences, Beijing (China); Iowa State University
2. Chinese Academy of Sciences (CAS) (China); University of Chinese Academy of Sciences, Beijing (China)
3. Iowa State Univ., Ames, IA (United States)

Basis Light-front Quantization (BLFQ) is a newly developed nonperturbative approach, aiming at solving relativistic bound systems based on the Hamiltonian formalism of light-front dynamics. Here, in this work, we introduce its application to the positronium system at strong coupling, α = 0.3, with a dynamical photon mediating the interaction between the positron and the electron. Non-perturbative mass renormalization is needed to cancel the fermion self-energy divergence. Finally, we present the resulting mass spectrum, light-front wave functions (LFWFs), and the photon distribution inside positronium.

• Research Organization: Iowa State Univ., Ames, IA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: FG02-87ER40371; AC02-05CH11231
• OSTI ID: 2278979
• Conference Information: Journal Name: Hadron Spectroscopy and Structure: Proceedings of the XVIII International Conference
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BLFQ
light-front wave functions
photon distribution
positronium