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Title: Particle distribution in intense fields in a light-front Hamiltonian approach

Journal Article · · Physical Review. D.
 [1];  [2];  [1];  [1];  [1]
  1. Iowa State University, Ames, IA (United States)
  2. Chinese Academy of Sciences (CAS), Lanzhou (China)

Here we study the real-time evolution of an electron influenced by intense electromagnetic fields using the time-dependent basis light-front quantization (tBLFQ) framework. We focus on demonstrating the nonperturbative feature of the tBLFQ approach through a realistic application of the strong coupling QED problem, in which the electromagnetic fields are generated by an ultrarelativistic nucleus. We calculate transitions of an electron influenced by such electromagnetic fields and we show agreement with light-front perturbation theory when the atomic number of the nucleus is small. We compare tBLFQ simulations with perturbative calculations for nuclei with different atomic numbers, and obtain the significant higher-order contributions for heavy nuclei. The simulated real-time evolution of the momentum distribution of an electron evolving inside the strong electromagnetic fields exhibits significant nonperturbative corrections compared to light-front perturbation theory calculations. The formalism used in this investigation can be extended to QCD problems in heavy ion collisions and electron ion collisions.

Research Organization:
Iowa State Univ., Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); Chinese Academy of Sciences
Grant/Contract Number:
FG02-87ER40371; SC0008485; AC02-05CH11231; DESC0008485
OSTI ID:
1536291
Alternate ID(s):
OSTI ID: 1360881
Journal Information:
Physical Review. D., Vol. 95, Issue 9; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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