65 citations · 193 across the 10 of their papers we have counts for
18 papers · 1 filter
Non-perturbative construction of counterterms for 2PI-approximation
A. Patkos, Zs. Szep
A concise method is presented for the non-perturbative computation of the counterterms renormalising 2PI-actions. The procedure is presented for a real scalar field up to lambda^2…
Counterterm resummation for 2PI-approximation in constant background
A. Patkos, Zs. Szep
Explicit counterterm construction is presented in a symmetry breaking background for the 2PI effective action of the self-interacting one-component scalar field including skeleton…
Renormalisability of the 2PI-Hartree approximation of multicomponent scalar models in the broken symmetry phase
G. Fejos, A. Patkos, Zs. Szep
Non-perturbative renormalisation of a general class of scalar field theories is performed at the Hartree level truncation of the 2PI effective action in the broken symmetry regime.…
Influence of the isospin and hypercharge chemical potentials on the location of the CEP in the mu_B-T phase diagram of the SU(3)_L x SU(3)_R chiral quark model
P. Kovacs, Zs. Szep
We investigate the influence of the asymmetric quark matter (rho_u\ne rho_d\ne rho_s) on the mass of the quasiparticles and the phase diagram of the chiral quark model parametrized…
The critical surface of the SU(3)_L x SU(3)_R chiral quark model at non-zero baryon density
P. Kovacs, Zs. Szep
The boundary of the first order chiral phase transition region is studied in the m_pi-m_K-mu_B space using the one-loop optimized perturbation theory for the resummation of the per…
The boundary of the first order chiral phase transition in the m_pi-m_K--plane with a linear sigma model
T. Herpay, Zs. Szep
Tree-level and complete one-loop parametrisation of the linear sigma model (LSM) is performed and the phase boundary between first order and crossover transition regions of the m_p…