335 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of CoimbraPT197 papers
- Universidade Federal de Santa CatarinaBR23 papers
- Instituto Superior TécnicoPT20 papers
- Joint Institute for Nuclear ResearchRU17 papers
- Centre National de la Recherche ScientifiqueFR14 papers
- University of LisbonPT12 papers
- Instituto Tecnológico de AeronáuticaBR8 papers
- Universidade Federal de Minas GeraisBR8 papers
- Universidade de São PauloBR7 papers
- Universidade Federal do ABCBR7 papers
- Bogolyubov Institute for Theoretical PhysicsUA6 papers
- Ghent UniversityBE6 papers
45 papers · 1 filter
Critical properties of calibrated relativistic mean-field models for the transition to warm, non-homogeneous nuclear matter
Olfa Boukari, Helena Pais, Sofija Antić +1
The critical properties for the transition to warm, asymmetric, non-homogeneous nuclear matter are analysed within a thermodynamical spinodal approach for a set of well calibrated…
Second virial coefficients of light nuclear clusters and their chemical freeze-out in nuclear collisions
K. A. Bugaev, O. V. Vitiuk, B. E. Grinyuk +13
Here we develop a new strategy to analyze the chemical freeze-out of light (anti)nuclei produced in high energy collisions of heavy atomic nuclei within an advanced version of the…
Unveiling the nuclear matter EoS from neutron star properties: a supervised machine learning approach
Márcio Ferreira, Constança Providência
We explore supervised machine learning methods in extracting the non-linear maps between neutron stars (NS) observables and the equation of state (EoS) of nuclear matter. Using a T…
On relation between bulk, surface and curvature parts of nuclear binding energy within the model of hexagonal clusters
V. V. Sagun, K. A. Bugaev, A. I. Ivanytskyi
Using the model of hexagonal clusters we express the surface, curvature and Gauss curvature coefficients of the nuclear binding energy in terms of its bulk coefficient. Using the d…
What do we learn about vector interactions from GW170817?
Veronica Dexheimer, Rosana de Oliveira Gomes, Stefan Schramm +1
We analyze the role played by vector-isovector meson interaction in dense matter present in the interior of neutron stars in the light of new measurements made during the double ne…
Stability of the neutron-proton-electron matter under strong magnetic fields: the covariant Vlasov approach
Sidney Avancini, B. P. Bertolino, Aziz Rabhi +3
The neutron-proton-electron(npe) matter under a strong magnetic field is studied in the context of the covariant Vlasov approach. We use a Walecka-type hadronic model and the dispe…
GW170817: constraining the nuclear matter equation of state from the neutron star tidal deformability
Tuhin Malik, N. Alam, M. Fortin +5
Constraints set on key parameters of the nuclear matter equation of state (EoS) by the values of the tidal deformability, inferred from GW170817, are examined by using a diverse se…
Light clusters in warm stellar matter: explicit mass shifts and universal cluster-meson couplings
Helena Pais, Francesca Gulminelli, Constança Providência +1
In-medium modifications of light cluster properties in warm stellar matter are studied within the relativistic mean-field approximation. In-medium effects are included by introduci…
Warm unstable asymmetric nuclear matter: critical properties and the density dependence of the symmetry energy
N. Alam, H. Pais, C. Providência +1
The spinodal instabilities in hot asymmetric nuclear matter and some important critical parameters derived thereof are studied using six different families of relativistic mean-fie…
Light Clusters and Pasta Phases in Warm and Dense Nuclear Matter
Sidney S. Avancini, Márcio Ferreira, Helena Pais +2
The pasta phases are calculated for warm stellar matter in a framework of relativistic mean-field models, including the possibility of light cluster formation. Results from three d…
Pasta phases within the QMC model
Guilherme Grams, Alexandre M. Santos, Prafulla K. Panda +2
In this work the low density regions of nuclear and neutron star matter are studied. The search for the existence of pasta phases in this region is performed within the context of…
Correlation of the neutron star crust-core properties with the slope of the symmetry energy and the lead skin thickness
H. Pais, A. Sulaksono, B. K. Agrawal +1
The correlations of the crust-core transition density and pressure in neutron stars with the slope of the symmetry energy and the neutron skin thickness are investigated, using dif…
Velocity operator approach to quantum fluid dynamics in a three-dimensional neutron-proton system
Seiya Nishiyama, Joao da Providencia
In the preceeding paper, introducing isospin-dependent density operators and defining exact momenta (collective variables), we could get an exact canonically momenta approach to a…
Single-particle spectral function of the hyperon in finite nuclei
Isaac Vidana
The spectral function of the hyperon in finite nuclei is calculated from the corresponding self-energy, which is constructed within a perturbative many-body approach using…
Is the magnetic field making the inner crust of neutron stars more heterogeneous?
Jianjun Fang, Sidney Avancini, Helena Pais +1
We study the effect of strong magnetic fields, of the order of G, on the extension of the crust of magnetized neutron stars. The dynamical instability region of n…
Neutron stars: from the inner crust to the core with the (Extended) Nambu-Jona-Lasinio model
Helena Pais, Débora P. Menezes, Constança Providência
Nucleonic matter is described within a su(2) extended Nambu-Jona-Lasinio model. Several parametrizations with different nuclear matter saturation properties are proposed. At subsat…
Hyperons in neutron stars and supernova cores
M. Oertel, F. Gulminelli, C. Providencia +1
The properties of compact stars and their formation processes depend on many physical ingredients. The composition and the thermodynamics of the involved matter is one of them. We…
QMC approach based on the Bogoliubov independent quark model of the nucleon
Henrik Bohr, Steven A. Moszkowski, Prafulla K. Panda +2
The quark-meson coupling model due to Guichon is formulated on the basis of the independent quark model of the nucleon proposed by Bogoliubov and is applied to the phenomenological…
Do hyperons exist in the interior of neutron stars ?
Debarati Chatterjee, Isaac Vidana
In this work we review the role of hyperons on the properties of neutron and proto-neutron stars. In particular, we revise the so-called "hyperon puzzle", go over some of the solut…
Hyperons in Neutron Stars
Isaac Vidana
In this work I briefly review some of the effects of hyperons on the properties of neutron and proto-neutron stars. In particular, I revise the problem of the strong softening of t…
Neutrino diffusion in the pasta phase matter within the Thomas-Fermi approach
U. J. Furtado, S. S. Avancini, J. R. Marinelli +2
The behavior and properties of neutrinos in non-uniform nuclear matter, surrounded by electrons and other neutrinos are studied. The nuclear matter itself is modeled by the non-lin…
Radiatively Induced Non Linearity in the Walecka Model
Rafael Cavagnoli, Marcus Benghi Pinto
We evaluate the effective potential for the conventional linear Walecka non perturbatively up to one loop. This quantity is then renormalized with a prescription which allows finit…
Color symmetric superconductivity in a phenomenological QCD model
Henrik Bohr, Constança Providência, João da Providência
In this paper, we construct a theory of the NJL-type where superconductivity is present, and yet the super-conducting state remains, in the average, color symmetric. This shows tha…
The Y(4260) as a system
A. Martínez Torres, K. P. Khemchandani, D. Gamermann +1
A study of the and systems, treating them as coupled channels, has been made by solving the Faddeev equations, with the purpose of investigating the possibil…