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hep-ph2026
Thermal dynamics in a four-fermion model: mean-field and functional renormalization group analyses
Arthur F. Vieira, Rudnei O. Ramos
We investigate a one-flavor four-fermion model with scalar, pseudoscalar, and mixed scalar-pseudoscalar interactions at finite temperature and vanishing chemical potential. Our ana…
hep-th2026
Towards Perturbative Unimodular Poincaré Gauge Theories with Propagating Torsion
Arthur F. Vieira, Antonio D. Pereira, Reinhard Alkofer
We study the one-loop relation between an effective-field-theory extension of Poincaré gauge theories of gravity with propagating torsion and its unimodular counterpart. In the Ein…