Spontaneous symmetry breaking in QCD
Yamada, Hirofumi
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHIRAL SYMMETRY; QUANTUM CHROMODYNAMICS; SYMMETRY BREAKING; HARTREE-FOCK METHOD; PERTURBATION THEORY; FLAVOR MODEL; REST MASS; PROPAGATOR; 662120; 662230; SYMMETRY, CONSERVATION LAWS, CURRENTS AND THEIR PROPERTIES
We study dynamical chiral symmetry breaking in QCD by the use of the generalized Hartree-Fock method. The low energy quark mass is calculated to the second order of diagrammatic expansion around shifted perturbative vacuum where quarks are massive. We show that the low energy mass is finite and renormalization group invariant. We find that the finite mass gap emerges as the solutions of gap equation and stationarity condition, thereby breaking the chiral symmetry. We also discuss the possibility that the breaking solution may exist up to all orders. (author).
Tokyo Univ., Tanashi (Japan). Inst. for Nuclear Study
OSTI; NTIS; INIS
Japan
1992-03-01
English
Technical Report
Other Information: PBD: Mar 1992
Medium: X; Size: 25 p.
ON: DE93753080
INS-918
Other: ON: DE93753080; TRN: JP9211001
JPN; SCA: 662120; 662230; PA: JPN-92:011001; SN: 93000918406
2008-02-12
10111058