activity
20132026
most citedQuark-nuclear hybrid equation of state for neutron stars under modern observational constraints

65 citations · 231 across the 23 of their papers we have counts for

collaborators

24 papers

nucl-th2026

Universal relations for hybrid stars and their quark cores: a systematic scan of the quark-matter parameter space

J. P. Carlomagno, G. A. Contrera, A. G. Grunfeld +1

Universal, equation-of-state (EOS) insensitive relations among the global properties of compact stars are well established for hadronic neutron stars and for self-bound strange sta…

hep-ph2026

Phase structure of magnetized quark matter at imaginary chemical potential

J. P. Carlomagno, D. Gómez Dumm, N. N. Scoccola

We investigate the phase structure of magnetized quark matter within a nonlocal SU(2) Polyakov-Nambu-Jona-Lasinio model. Our work focuses on the interplay between temperature and i…

hep-ph2025

Exploring Anisotropic Effects in Magnetized Quark Matter

S. A. Ferraris, J. P. Carlomagno, G. A. Contrera +1

We investigate the thermodynamic properties of cold magnetized quark matter within a nonlocal Nambu Jona Lasinio (nlNJL) model. Our study addresses the equation of state, anisotrop…

hep-ph2025

Anisotropy in Magnetized Quark Matter in the Chiral Limit

S. A. Ferraris, J. P. Carlomagno, G. A. Contrera +1

We investigate the behavior of cold quark matter under strong magnetic fields in the frame of a nonlocal NJL model in the chiral limit. Our analysis focuses on deconfinement, chira…

hep-ph2025

Topological susceptibility and axion properties in the presence of a strong magnetic field within the three-flavor NJL model

J. P. Carlomagno, D. Gómez Dumm, N. N Scoccola

We analyze the topological susceptibility and the axion properties in the presence of an external uniform magnetic field, considering a three flavor NJL model that includes strong…

nucl-th2025★ 11 cited

Bayesian analysis of hybrid neutron star EOS constraints within an instantaneous nonlocal chiral quark matter model

Alexander Ayriyan, David Blaschke, Juan Pablo Carlomagno +2

We present a physics-informed Bayesian analysis of equation of state constraints using observational data for masses, radii and tidal deformability of pulsars and a generic class o…

nucl-th2024★ 4 cited

Hybrid isentropic twin stars

Juan Pablo Carlomagno, Gustavo A. Contrera, Ana Gabriela Grunfeld +1

We present a study of hybrid neutron stars with color superconducting quark matter cores at finite temperature that results in sequences of stars with constant entropy per baryon,…

hep-ph2024

Cold isospin asymmetric baryonic rich matter in nonlocal NJL-like models

J. P. Carlomagno, D. Gomez Dumm, N. N. Scoccola

We study the features of low energy strong interactions for a system at zero temperature and finite baryon and isospin chemical potentials, in the framework of a Nambu--Jona-Lasini…

nucl-th2023★ 16 cited

Thermal twin stars within a hybrid equation of state based on a nonlocal chiral quark model compatible with modern astrophysical observations

J. P. Carlomagno, G. A. Contrera, A. G. Grunfeld +1

We investigate the extension to finite temperatures and neutrino chemical potentials of a recently developed nonlocal chiral quark model approach to the equation of state of neutro…

hep-ph2023

quark matter phase transitions and critical end point in nonlocal PNJL models

J. P. Carlomagno, S. A. Ferraris, D. Gómez Dumm +1

We study the phase diagram of quark matter under the influence of a strong uniform magnetic field in the framework of a nonlocal extension of the Polyakov Nambu Jona Lasi…

hep-ph2022★ 1 cited

Quark matter phase diagram under the influence of strong magnetic fields with a nonlocal chiral model

J. P. Carlomagno, S. A. Ferraris, D. Gómez Dumm +1

We study the phase diagram in the plane for quark matter under the influence of a strong uniform magnetic field , in the framework of a non-local extension of the tw…

hep-ph2022★ 17 cited

Charged pseudoscalar and vector meson masses under strong magnetic fields in an extended NJL model

J. P. Carlomagno, D. Gomez Dumm, M. F. Izzo Villafañe +2

The mass spectrum of and mesons in the presence of a static uniform magnetic field is studied within a two-flavor NJL-like model. We improve previous calculati…

nucl-th2022★ 65 cited

Quark-nuclear hybrid equation of state for neutron stars under modern observational constraints

G. A. Contrera, D. Blaschke, J. P. Carlomagno +2

We study a family of equations of state for hybrid neutron star matter. The hybrid EOS are obtained by a Maxwell construction of the first-order phase transition between a hadronic…

hep-ph2021

Isospin asymmetric matter in a nonlocal chiral quark model

J. P. Carlomagno, D. Gomez Dumm, N. N. Scoccola

We analyze the features of strongly interacting matter in the presence of nonzero isospin chemical potential , within a nonlocal two-flavor Polyakov-Nambu-Jona-Lasinio (PNJL)…

hep-ph2021★ 17 cited

Strong-interaction matter under extreme conditions from chiral quark models with nonlocal separable interactions

D. Gomez Dumm, J. P. Carlomagno, N. N. Scoccola

We review the current status of the research on effective nonlocal NJL-like chiral quark models with separable interactions, focusing on the application of this approach to the des…

hep-ph2019★ 10 cited

Vector and axial-vector meson properties in a nonlocal SU(2) PNJL model

J. P. Carlomagno, M. F. Izzo Villafañe

We study the features of a SU(2) Polyakov-Nambu-Jona-Lasinio model that includes wave function renormalization and nonlocal vector interactions. Within this framework we analyze, a…

hep-ph2019★ 2 cited

Relation between the continuum threshold and the Polyakov loop with the QCD deconfinement transition

J. P. Carlomagno, M. Loewe

Using vector and axial-vector correlators within finite energy sum rules with inputs from a chiral quark model, coupled to the Polyakov loop, with nonlocal vector interactions, we…

hep-ph2018★ 4 cited

Time-dependent Ginzburg-Landau approach to the dynamics of inhomogeneous chiral condensates in a nonlocal Nambu--Jona-Lasinio model

Juan Pablo Carlomagno, Gastão Krein

We study the dynamics of inhomogeneous scalar and pseudoscalar chiral order parameters within the framework of the time-dependent Ginzburg-Landau equations. We utilize a nonlocal c…

hep-ph2018★ 14 cited

Meson properties and phase diagrams in a SU(3) nlPNJL model with lQCD-inspired form factors

J. P. Carlomagno

We study the features of a nonlocal SU(3) Polyakov-Nambu-Jona-Lasinio model that includes wave function renormalization. Model parameters are determined from vacuum phenomenology c…

hep-ph2017

The continuum threshold and the Polyakov loop: A comparison between two deconfinement order parameters

J. P. Carlomagno, M. Loewe

We compare two order parameters for the deconfinement transition, induced by thermal and density effects, commonly used in the literature, namely the thermal and density evolution…

hep-ph2017

Gluon condensate from the Polyakov loop

J. P. Carlomagno, J. C. Rojas

We estimate the temperature dependence of the gluon condensate from the Polyakov loop effective potential. It is presented how this analytic approach provides a simple picture for…

hep-ph2015★ 21 cited

Inhomogeneous phases in nonlocal chiral quark models

J. P. Carlomagno, D. Gomez Dumm, N. N. Scoccola

The presence of inhomogeneous phases in the QCD phase diagram is analyzed within chiral quark models that include nonlocal interactions. We work at the mean field level, assuming t…

hep-ph2014★ 12 cited

Generalized Ginzburg-Landau approach to inhomogeneous phases in nonlocal chiral quark models

J. P. Carlomagno, D. Gomez Dumm, N. N. Scoccola

We analyze the presence of inhomogeneous phases in the QCD phase diagram within the framework of nonlocal chiral quark models. We concentrate in particular in the positions of the…

hep-ph2013★ 37 cited

Deconfinement and chiral restoration in nonlocal SU(3) chiral quark models

J. P. Carlomagno, D. Gomez Dumm, N. N. Scoccola

We study the features of nonlocal SU(3) chiral quark models with wave function renormalization. Model parameters are determined from meson phenomenology, considering different nonl…