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DOE OSTI · 2278979

Positronium on the light front

Fu, Kaiyu·Zhao, Hengfei·Zhao, Xingbo·Vary, James P.
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Abstract

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.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSBLFQlight-front wave functionsphoton distributionpositronium

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Fu, Kaiyu, Zhao, Hengfei, Zhao, Xingbo, Vary, James P.. 2020-08-01. Positronium on the light front. https://doi.org/10.1142/9789811219313_0093

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