Transport coefficients and resonances for a meson gas in Chiral Perturbation Theory

D Fernández-Fraile, A Gomez Nicola - The European Physical Journal C, 2009 - Springer
We present recent results on a systematic method to calculate transport coefficients for a
meson gas (in particular, we analyze a pion gas) at low temperatures in the context of Chiral …

Imaginary Chemical Potential, NJL-Type Model and Confinement–Deconfinement Transition

K Kashiwa - Symmetry, 2019 - mdpi.com
In this review, we present of an overview of several interesting properties of QCD at finite
imaginary chemical potential and those applications to exploring the QCD phase diagram …

Aspects on effective theories and the QCD transition

A Gómez Nicola - Symmetry, 2020 - mdpi.com
We review recent advances in the understanding of the Quantum Chromodynamics (QCD)
transition and its nature, paying special attention to the analysis of chiral symmetry …

Chiral Lagrangian at finite temperature from the Polyakov-chiral quark model

E Megias, ER Arriola, LL Salcedo - Physical Review D—Particles, Fields …, 2006 - APS
We analyze the consequences of the inclusion of the gluonic Polyakov loop in chiral quark
models at low temperature in the light of chiral perturbation theory. Specifically, the low …

Chiral condensate from a hadron resonance gas model

D Biswas, P Petreczky, S Sharma - Physical Review C, 2022 - APS
In this work we address the question of how well the chiral crossover transition can be
understood in terms of a noninteracting hadron resonance gas model. Using the latest …

Scalar susceptibilities and four-quark condensates in the meson gas<? format?> within chiral perturbation theory

A Gomez Nicola, JR Pelaez, JR de Elvira - Physical Review D—Particles …, 2013 - APS
We analyze the properties of four-quark condensates and scalar susceptibilities in the
meson gas, within finite temperature chiral perturbation theory (ChPT). The breaking of the …

[HTML][HTML] Topological feature and phase structure of QCD at complex chemical potential

K Kashiwa, A Ohnishi - Physics Letters B, 2015 - Elsevier
The pseudo-critical temperature of the confinement–deconfinement transition and the phase
transition surface are investigated by using the complex chemical potential. We can interpret …

[HTML][HTML] Chiral condensate in neutron matter

N Kaiser, W Weise - Physics Letters B, 2009 - Elsevier
A recent chiral perturbation theory calculation of the in-medium quark condensate〈 q¯ q〉 is
extended to the isospin-asymmetric case of pure neutron matter. In contrast to the behavior …

Properties of cold dense nuclear matter based on a nonperturbative approach inspired by chiral perturbation theory

X Li, XF Lue, B Wang, W Sun, H Zong - Physical Review C—Nuclear Physics, 2009 - APS
The effective chiral Lagrangian for cold dense nuclear matter is constructed, in which the
chemical potential corresponding to the baryon number density of QCD is introduced and …

Interacting constituents in cosmology

R Aldrovandi, RR Cuzinatto… - International Journal of …, 2008 - World Scientific
Universe evolution, as described by Friedmann's equations, is determined by source terms
fixed by the choice of pressure× energy density equations of state p (ρ). The usual approach …