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arXiv · hep-lat/9212015

Mass Spectrum and Bounds on the Couplings in Yukawa Models With Mirror-Fermions

L. Lin·G. Münster·M. Plagge·I. Montvay·H. Wittig·C. Frick·T. Trappenberg
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Abstract

The $\rm SU(2)_L\otimes SU(2)_R$ symmetric Yukawa model with mirror-fermions in the limit where the mirror-fermion is decoupled is studied both analytically and numerically. The bare scalar self-coupling $λ$ is fixed at zero and infinity. The phase structure is explored and the relevant phase transition is found to be consistent with a second order one. The fermionic mass spectrum close to that transition is discussed and a first non-perturbative estimate of the influence of fermions on the upper and lower bounds on the renormalized scalar self-coupling is given. Numerical results are confronted with perturbative predictions.

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L. Lin, G. Münster, M. Plagge, I. Montvay, H. Wittig, C. Frick, T. Trappenberg. 1992-12-12. Mass Spectrum and Bounds on the Couplings in Yukawa Models With Mirror-Fermions. https://doi.org/10.1016/0920-5632(93)90294-g

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