Domain wall fermions in a waveguide: The phase diagram at large Yukawa coupling

Journal Article · Wed Mar 15 00:00:00 EST 1995 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.51.3026· OSTI ID:6588901

Golterman, M F.L. ^[1]; Shamir, Y ^[2]

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1. Department of Physics, Washington University, St. Louis, Missouri 63130 (United States)
2. Department of Physics, Weizmann Institute of Science, Rehovot 76100 (Israel)

In this paper we return to a model with domain wall fermions in a waveguide. This model contains a Yukawa coupling [ital y] which is needed for gauge invariance. A previous paper left the analysis for large values of this coupling incomplete. We fill the gap by developing a systematic expansion suitable for large [ital y], and using this, we gain an analytic understanding of the phase diagram and fermion spectrum. We find that in a sense all the species doublers come back for large [ital y]. The conclusion that no lattice chiral gauge theory can be obtained from this approach therefore remains valid.

• OSTI ID: 6588901
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 51:6; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PHASE DIAGRAMS
YUKAWA POTENTIAL
WAVEGUIDES
FERMIONS
GAUGE INVARIANCE
SPECTRA
UNIFIED GAUGE MODELS
DIAGRAMS
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
NUCLEAR POTENTIAL
PARTICLE MODELS
POTENTIALS
662110* - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-)
662120 - General Theory of Particles & Fields- Symmetry
Conservation Laws
Currents & Their Properties- (1992-)