156 citations · 1.5k across the 69 of their papers we have counts for
41 papers · 1 filter
Interplay between the chiral and deconfinement transitions from a Curci-Ferrari-based Polyakov loop potential
V. Tomas Mari Surkau, Urko Reinosa
We couple the two-flavor Nambu--Jona-Lasinio model to a gluonic background corresponding to the gauge-field expectation value in the center-symmetric Landau gauge. Low-energy featu…
SU() confinement and color -ality
V. Tomas Mari Surkau, Urko Reinosa
In a recent work, we have argued that the net quark number gained by a bath of quarks and gluons upon bringing an external static quark probe, while being equal to in the high…
Using net quark number gain to probe the phases of QCD
V. Tomas Mari Surkau, Urko Reinosa
We discuss an observable that probes the content of a QCD medium at finite temperature and chemical potential, the net quark number gain. It is the response of the thermal bath to…
Mesons, baryons and the confinement/deconfinement transition
V. Tomas Mari Surkau, Urko Reinosa
We identify an observable that could operate as a probe of the quark versus hadron content of a bath of quarks and gluons at finite temperature and chemical potential. To this purp…
Heavy-quark corner of the Columbia plot from the center-symmetric Curci-Ferrari model
V. Tomas Mari Surkau, Urko Reinosa
We investigate the heavy-quark corner of the Columbia plot using the gluon potential derived from the Curci-Ferrari extension of the Faddeev-Popov gauge fixing in the center-symmet…
The infrared-safe Minkowskian Curci-Ferrari model
Santiago Oribe, Marcela Peláez, Urko Reinosa
We discuss the existence of Landau-pole-free renormalization group trajectories in the Minkowskian version of the Curci-Ferrari model as a function of a running parameter ass…
Aspects of confinement within non-Abelian gauge theories
Urko Reinosa
These lectures cover two aspects: first, irrespectively of the particular approach followed to tackle the QCD phase diagram, we introduce some tools that help discussing the confin…
Three lectures on the Curci-Ferrari model
Urko Reinosa
In these lectures, we review the status of the Curci-Ferrari model as a phenomenological approach to Landau gauge-fixed YM theories in the infrared. More precisely, after discussin…
Deconfinement transition within the Curci-Ferrari model -- Renormalization scale and scheme dependences
V. Tomas Mari Surkau, Urko Reinosa
We analyze the confinement/deconfinement transition of pure Yang-Mills theories within the framework of the center-symmetric Landau gauge supplemented by a Curci-Ferrari mass term…
Small parameters in infrared QCD: The pion decay constant
Marcela Peláez, Urko Reinosa, Julien Serreau +1
We continue our investigation of the QCD dynamics in terms of the Curci-Ferrari effective Lagrangian, a deformation of the Faddeev-Popov one in the Landau gauge with a tree-level g…
Two-loop three-gluon vertex from the Curci-Ferrari model and its leading infrared behavior to all loop orders
Nahuel Barrios, Marcela Peláez, Urko Reinosa
We evaluate the three-gluon vertex with one vanishing external momentum within the Curci-Ferrari (CF) model at two-loop order and compare our results to Landau-gauge lattice simula…
Signatures of the Yang-Mills deconfinement transition from the gluon two-point correlator
Duifje Maria van Egmond, Urko Reinosa
We evaluate the longitudinal or (chromo-)electric Yang-Mills gluon propagator in the recently proposed center-symmetric Landau gauge at finite temperature [1]. To model the effect…
A novel background field approach to the confinement-deconfinement transition
Duifje Maria van Egmond, Urko Reinosa, Julien Serreau +1
We propose a novel approach to the confinement-deconfinement transition in Yang-Mills theories in the context of gauge-fixed calculations. The method is based on a background-field…
Spontaneous chiral symmetry breaking in the massive Landau gauge: realistic running coupling
Marcela Peláez, Urko Reinosa, Julien Serreau +2
We investigate the spontaneous breaking of chiral symmetry in QCD by means of a recently proposed approximation scheme in the Landau-gauge Curci-Ferrari model, which combines an ex…
A perturbative study of the QCD phase diagram for heavy quarks at nonzero chemical potential: two-loop corrections
J. Maelger, U. Reinosa, J. Serreau
We extend a previous investigation of the QCD phase diagram with heavy quarks in the context of background field methods by including the two-loop corrections to the background fie…
Padé approximants and analytic continuation of Euclidean Phi-derivable approximations
Gergely Markó, Urko Reinosa, Zsolt Szép
We investigate the Padé approximation method for the analytic continuation of numerical data and its ability to access, from the Euclidean propagator, both the spectral function an…
Loss of solution in the symmetry improved Phi-derivable expansion scheme
Gergely Markó, Urko Reinosa, Zsolt Szép
We consider the two-loop Phi-derivable approximation for the O(2)-symmetric scalar model, augmented by the symmetry improvement introduced in [A. Pilaftsis and D. Teresi, Nucl. Phy…
The O(N)-model within the Phi-derivable expansion to order lambda^2: on the existence, UV and IR sensitivity of the solutions to self-consistent equations
Gergely Markó, Urko Reinosa, Zsolt Szép
We discuss various aspects of the O(N)-model in the vacuum and at finite temperature within the Phi-derivable expansion scheme to order lambda^2. In continuation to an earlier work…
Renormalization out of equilibrium in a superrenormalizable theory
Mathias Garny, Urko Reinosa
We discuss the renormalization of the initial value problem in Nonequilibrium Quantum Field Theory within a simple, yet instructive, example and show how to obtain a renormalized t…
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…
Deconfinement transition in SU(N) theories from perturbation theory
U. Reinosa, J. Serreau, M. Tissier +1
We consider a simple massive extension of the Landau-DeWitt gauge for SU() Yang-Mills theory. We compute the corresponding one-loop effective potential for a temporal background…
Thermodynamics and phase transition of the O(N) model from the two-loop Phi-derivable approximation
Gergely Markó, Urko Reinosa, Zsolt Szép
We discuss the thermodynamics of the O(N) model across the corresponding phase transition using the two-loop Phi-derivable approximation of the effective potential and compare our…
Broken phase effective potential in the two-loop Phi-derivable approximation and nature of the phase transition in a scalar theory
Gergely Markó, Urko Reinosa, Zsolt Szép
We study the phase transition of a real scalar phi^4 theory in the two-loop Phi-derivable approximation using the imaginary time formalism, extending our previous (analytical) disc…
Broken phase scalar effective potential and Phi-derivable approximations
Urko Reinosa, Zsolt Szep
We study the effective potential of a real scalar phi^4 theory as a function of the temperature T within the simplest Phi-derivable approximation, namely the Hartree approximation.…