Variational mass perturbation theory for light-front bound-state equations

1998 ◽  
Vol 57 (4) ◽  
pp. 2460-2474 ◽  
Author(s):  
Koji Harada ◽  
Thomas Heinzl ◽  
Christian Stern
Keyword(s):  
Perturbation Theory ◽  
Bound State ◽  
Light Front ◽  
State Equations

scholarly journals Supersymmetry across the Hadronic Spectrum

2017 ◽  
Vol 2017 ◽  
pp. 1-6
Author(s):  
Hans Günter Dosch
Keyword(s):  
Heavy Quark ◽  
Dimensional Space ◽  
Conformal Symmetry ◽  
Bound State ◽  
Light Front ◽  
De Sitter ◽  
State Equations ◽  
Classical Action ◽  
Heavy Quark Mass ◽  
Dimensional Minkowski Space

Semiclassical light-front bound-state equations for hadrons are presented and compared with experiment. The essential dynamical feature is the holographic approach; that is, the hadronic equations in four-dimensional Minkowski space are derived as holograms of classical equations in a 5-dimensional anti-de Sitter space. The form of the equations is constrained by the imposed superconformal algebra, which fixes the form of the light-front potential. If conformal symmetry is strongly broken by heavy quark masses, the combination of supersymmetry and the classical action in the 5-dimensional space still fixes the form of the potential. By heavy quark symmetry, the strength of the potential is related to the heavy quark mass. The contribution is based on several recent papers in collaboration with Stan Brodsky and Guy de Téramond.

Light front Hamiltonian for boson form of QED (1 + 1) in Pauli–Villars regularization

2019 ◽  
Vol 34 (21) ◽  
pp. 1950113
Author(s):  
V. A. Franke ◽  
M. Yu. Malyshev ◽  
S. A. Paston ◽  
E. V. Prokhvatilov ◽  
M. I. Vyazovsky
Keyword(s):  
Perturbation Theory ◽  
Chiral Perturbation Theory ◽  
Chiral Condensate ◽  
Light Front ◽  
Coupling Constants ◽  
Hamiltonian Approach ◽  
Chiral Perturbation ◽  
Dimensional Models ◽  
Villars Regularization ◽  
Ultraviolet Regularization

Light front (LF) Hamiltonian for QED in [Formula: see text] dimensions is constructed using the boson form of this model with additional Pauli–Villars-type ultraviolet regularization. Perturbation theory, generated by this LF Hamiltonian, is proved to be equivalent to usual covariant chiral perturbation theory. The obtained LF Hamiltonian depends explicitly on chiral condensate parameters which enter in a form of some renormalization of coupling constants. The obtained results can be useful when one attempts to apply LF Hamiltonian approach for [Formula: see text]-dimensional models like QCD.

Temporally ordered graphs and bound state equations

1955 ◽  
Vol 51 (4) ◽  
pp. 762-765
Author(s):  
J. C. Polkinghorne
Keyword(s):  
Bound States ◽  
Three Dimensional ◽  
Bound State ◽  
State Equations ◽  
Single Time ◽  
Ordered Graphs

ABSTRACTOrdered graphs are used to obtain the kernels of the single-time, three dimensional, equations for bound states given by Lévy and Klein, and by Tamm and Dancoff.

Relativistic bound-state problem in the light-front Yukawa model

1993 ◽  
Vol 47 (4) ◽  
pp. 1599-1619 ◽  
Author(s):  
Stanisław Głazek ◽  
Avaroth Harindranath ◽  
Stephen Pinsky ◽  
Junko Shigemitsu ◽  
Kenneth Wilson
Keyword(s):  
Bound State ◽  
Light Front ◽  
Yukawa Model ◽  
State Problem ◽  
Bound State Problem

Solvable light-front model of a relativistic bound state in 1+1 dimensions

1988 ◽  
Vol 37 (2) ◽  
pp. 421-426 ◽  
Author(s):  
Mikolaj Sawicki ◽  
Lech Mankiewicz
Keyword(s):  
Bound State ◽  
Light Front ◽  
Front Model
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