3 papers
hep-ph2025
CP asymmetry factor in decays at finite temperature
Károly Seller, Zsolt Szép, Zoltán Trócsányi
We present in the conventional equilibrium approach to leptogenesis the complete leading order prediction for the CP asymmetry factor in finite-temperature decays involving Majoran…
cond-mat.stat-mech2025
Scaling Behaviors in Active Model B+ via the Functional Renormalization Group
Gergely Fejős, Zsolt Szép, Naoki Yamamoto
We study the scaling behaviors of the active model B+ using the functional renormalization group (FRG) approach, based on the nonequilibrium effective action formulated via the Mar…
hep-ph2025
Naive Gaussian approximation in a quark-meson model
Győző Kovács, Zsolt Szép, Péter Kovács +1
A sequence of approximations is derived to go beyond the mean-field level in the case of a simple linear sigma model. A naive, local version of the Gaussian approximation is discus…