Basis light-front quantization approach to photon
Journal Article
·
· Physics Letters. B
- Chinese Academy of Sciences (CAS), Lanzhou (China); University of Chinese Academy of Sciences, Beijing (China); Chinese Academy of Sciences, Lanzhou (China); Institute for Modern Physics, Chinese Academy of Sciences, Lanzhou-730000, China
- Chinese Academy of Sciences (CAS), Lanzhou (China); University of Chinese Academy of Sciences, Beijing (China); Chinese Academy of Sciences, Lanzhou (China)
- Indian Institute of Technology Bombay, Mumbai (India)
- Iowa State University, Ames, IA (United States)
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.
- Research Organization:
- Iowa State University, Ames, IA (United States); University of Tennessee, Knoxville, TN (United States)
- Sponsoring Organization:
- Chinese Academy of Sciences; Natural Science Foundation of Gansu Province; USDOE Office of Science (SC)
- Grant/Contract Number:
- FG02-87ER40371; SC0018223
- OSTI ID:
- 1977567
- Journal Information:
- Physics Letters. B, Journal Name: Physics Letters. B Journal Issue: C Vol. 827; ISSN 0370-2693
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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