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4 papers · 2 filters
Excitation function of elastic scattering from a unitarily extended Bialas-Bzdak model
F. Nemes, T. Csörgő, M. Csanád
The Bialas-Bzdak model of elastic proton-proton scattering assumes a purely imaginary forward scattering amplitude, which consequently vanishes at the diffractive minima. We extend…
Effects of (axial)vector mesons on the chiral phase transition: initial results
Peter Kovacs, Zsolt Szep, Gyorgy Wolf
We investigate the effects of (axial)vector mesons on the chiral phase transition in the framework of an SU(3), (axial)vector meson extended linear sigma model with additional cons…
Bose-Einstein condensation and Silver Blaze property from the two-loop -derivable approximation
Gergely Markó, Urko Reinosa, Zsolt Szép
We extend our previous investigation of the two-loop -derivable approximation to finite chemical potential and discuss Bose-Einstein condensation (BEC) in the case of a char…
Renormalized O(N) model at next-to-leading order of the 1/N expansion: Effects of the Landau pole
G. Fejos, A. Patkos, Zs. Szep
Apparently convergent contributions of resummed perturbative series at the next-to-leading order of the 1/N expansion in the O(N) model are reanalyzed in terms of renormalizability…