Roma versus Zaragoza
J. L. Alonso, Ph. Boucaud, F. Lesmes, A. J. van der Sijs
Abstract
The Roma and Zaragoza actions for chiral fermions on the lattice are shown to be essentially equivalent. The auxiliary fermion fields in the Roma model can be integrated out, and the resulting action is a special case of the Zaragoza approach. We use this result to perform a mean-field study of the phase diagram of chiral Yukawa models in the Roma formulation.
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