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Basis light-front quantization approach to photon
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DOI：10.1016/j.physletb.2022.137005.png)
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摘要
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We solve for the light-front wave functions (LFWFs) of the physical photon from the eigenvectors of the light-front quantum electrodynamics (QED) Hamiltonian with the aim to determine its bare photon and electron-positron Fock components. We then employ the resulting LFWFs to compute the transverse momentum dependent parton distributions (TMDs) and the generalized parton distributions (GPDs) at zero skewness of the photon. The TMDs are found to be in excellent agreement with the lowest-order perturbative results calculated using the electron-positron quantum fluctuation of the photon. The GPDs are also consistent with the perturbative calculations.(C) 2022 The Author(s). Published by Elsevier B.V.& nbsp;& nbsp;
Keyword:
Light-front quantization
Quantum electrodynamics
Photons
Parton distribution functions
期刊
IF:
4.5
论文数:
3.2W
被引数:
7.3W
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