On the Confined-Deconfined Phase Transition in Nuclear Matter

Burigo, Lucas; Jacobsen, Rafael Bán; Vasconcellos, Pc. A. Z.; Bodmann, B. E. J.; Fernández, F.

doi:10.1142/9789814304887_0014

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The meson-baryon couplings are implicitly density dependent and parametrized by a constant. The parametric coupling formalism reproduces successfully nuclear matter properties and has been applied to investigate different topics related to nuclear physics, such as the nuclear matter compressibility [36], hadron-quark phase transitions [37], kaon condensation [38], symmetry energy [39] and effects of magnetic fields on neutron stars [40,41].…”

Section: Introductionmentioning

confidence: 99%

Many-Body Forces in the Equation of State of Hyperonic Matter

Gomes

Dexheimer

Schramm

et al. 2015

ApJ

View full text Add to dashboard Cite

In this work we introduce an extended version of the formalism proposed originally by Taurines et al. that considers the effects of many-body forces simulated by non-linear self-couplings and mesonmeson interaction contributions. In this extended version of the model, we assume that matter is at zero temperature, charge neutral and in beta-equilibrium, considering that the baryon octet interacts by the exchange of scalar-isoscalar (σ, σ * ), vector-isoscalar (ω, φ), vector-isovector ( ) and scalar-isovector (δ) meson fields. Using nuclear matter properties, we constrain the parameters of the model that describe the intensity of the indirectly density dependent baryon-meson couplings to a small range of possible values. We then investigate asymmetric hyperonic matter properties. We report that the formalism developed in this work is in agreement with experimental data and also allows for the existence of massive hyperon stars (with more than 2M ) with small radii, compatible with astrophysical observations.

show abstract