Hopping parameter expansion investigation of A U(1)L ⊗ U(1)R lattice yukawa model in the symmetric phase

 
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1991 (EN)

Hopping parameter expansion investigation of A U(1)L ⊗ U(1)R lattice yukawa model in the symmetric phase (EN)

Koutsoumbas, G (EN)
Farakos, K (EN)

Employing the eighth-order Hopping Parameter Expansion, we investigate the lattice regularized U(1)L ⊗ U(1)R scalar-fermion model in the phase with unbroken symmetry. We calculate two-, three- and four-point functions, out of which the renormalized masses and couplings, as well as the wave function renormalization constants can be deduced. The outcome is compared to existing Monte Carlo results and new regions of the bare parameter space are explored. Evidence is given about the multicritical structure of the model in the large Yukawa coupling region. (EN)

journalArticle (EN)

SCALAR-FERMION MODEL (EN)
BREAKING (EN)
RENORMALIZATION-GROUP EQUATIONS (EN)
Physics, Particles & Fields (EN)
ONE-COMPONENT MODEL (EN)
QUANTUM-FIELD THEORY (EN)
COUPLINGS (EN)
4-DIMENSIONAL ISING-MODEL (EN)
TRIVIALITY BOUNDS (EN)
PHI-4 THEORY (EN)
SCALING LAWS (EN)


Nuclear Physics B (EN)

English

1991 (EN)

366 (EN)
3 (EN)
665 (EN)
0550-3213 (EN)
688 (EN)
ISI:A1991GU64300011 (EN)

ELSEVIER SCIENCE BV (EN)




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