Gauge invariant bound state equations for quark-antiquark systems in QCD
| Autor: | H. Sazdjian |
|---|---|
| Přispěvatelé: | Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Quantum chromodynamics
Physics Nuclear and High Energy Physics Gauge boson Particle physics Wilson loop 010308 nuclear & particles physics Spontaneous symmetry breaking High Energy Physics::Lattice QCD vacuum High Energy Physics::Phenomenology FOS: Physical sciences Top quark condensate 01 natural sciences High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] 0103 physical sciences High Energy Physics::Experiment 010306 general physics Chiral symmetry breaking Gluon field Mathematical physics |
| Zdroj: | Physical Review D Physical Review D, American Physical Society, 2013, 88, pp.025034. ⟨10.1103/PhysRevD.88.025034⟩ |
| ISSN: | 1550-7998 1550-2368 |
| Popis: | Using gauge invariant quark Green's functions, defined with path-ordered gluon field phase factors along polygonal lines, and functional relations among them, two compatible bound state equations of the Dirac type are established for quark-antiquark systems, each relative to the quark or to the antiquark of the system. The kernels of the bound state equations are defined through a series of Wilson loop averages along closed polygonal contours and their functional derivatives on them. A sufficient criterion for spontaneous chiral symmetry breaking is derived, relating the Goldstone boson wave function in the zero total momentum limit with the scalar part of the gauge invariant quark two-point Green's function. Comment: 25 pages, 2 figures; v2: comments and references added |
| Databáze: | OpenAIRE |
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