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Positronium: an illustration of nonperturbative renormalization in a basis light-front approach

Journal Article · · PoS - Proceedings of Science
DOI:https://doi.org/10.22323/1.374.0090· OSTI ID:2278972
 [1];  [2];  [2];  [3]
  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)
+ Show Author Affiliations
We calculate the mass spectrum and the structure of the positronium system at a strong coupling in a basis light-front approach. We start from the light-front QED Hamiltonian and retain one dynamical photon in our basis. We perform the fermion mass renormalization associated with the nonperturbative fermion self-energy correction. We present the resulting mass spectrum and wave functions for the selected low-lying states. Next, we apply this approach to QCD and calculate the heavy meson system with one dynamical gluon retained. We illustrate the obtained mass spectrum and wave functions for the selected low-lying states.
Research Organization:
Iowa State Univ., Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR). Scientific Discovery through Advanced Computing (SciDAC); USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC02-05CH11231; FG02-87ER40371
OSTI ID:
2278972
Journal Information:
PoS - Proceedings of Science, Journal Name: PoS - Proceedings of Science Vol. 374; ISSN 1824-8039
Publisher:
SISSACopyright Statement
Country of Publication:
United States
Language:
English

Figures / Tables (4)

Figure 1(p. 3)figure Figure 1
Figure 2(p. 3)figure Figure 2
Figure 3(p. 4)figure Figure 3
Figure 4(p. 5)figure Figure 4

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BLFQ
electron
loop corrections
quantum electrodynamics