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Related papers: Properties of Hybrid Stars with Density Dependent …

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We investigate the possible scenario of deconfinement of hyperon rich hadronic matter to quark matter at high densities and the resulting hybrid star (HS) properties are analyzed. In the relativistic mean-field framework, we construct the…

Nuclear Theory · Physics 2018-12-14 Debashree Sen , T. K. Jha

Hadron-quark phase transition in neutron star cores is achieved in the present work with the help of Maxwell construction. For the purpose we employ six different and well-known hadronic models for the pure hadronic phase. The quark phase…

Nuclear Theory · Physics 2022-10-18 Debashree Sen , Naosad Alam , Gargi Chaudhuri

The possible conditions for hadron-quark phase transition in hybrid star cores are investigated in the present work. For the hadronic matter part the effective chiral model is adopted. Exotic baryonic degrees like hyperons and the delta…

Nuclear Theory · Physics 2021-04-15 Debashree Sen

We study quark-hadron hybrid stars with sharp phase transitions assuming that phase conversions at the interface are slow. Hadronic matter is described by a set of equations of state (EoS) based on the chiral effective field theory and…

High Energy Astrophysical Phenomena · Physics 2020-10-13 Alessandro Parisi , C. Vásquez Flores , C. Henrique Lenzi , Chian-Shu Chen , Germán Lugones

The hadron-quark phase transition in the core of heavy neutron star (NS) has been studied. For the hadronic sector, we have used the lowest-order constraint variational method by employing $ AV_{18} $, $ AV_{14}$, $ UV_{14}$, and Reid $ 68…

Nuclear Theory · Physics 2025-09-12 S. Khanmohamadi , H. R. Moshfegh , S. Atashbar Tehrani

Different types of phase transition from hadron to quark at high density near zero temperature may occur in the inner core of hybrid stars. We investigate the impacts of phase transition types and quark models on properties of hybrid star…

Nuclear Theory · Physics 2024-03-11 Yida Yang , Chen Wu , Ji-Feng Yang

We compute the hybrid star (HS) properties with the help of Maxwell construction. For the purpose we choose a fixed hadronic model and four different forms of MIT bag model for the quark phase. We investigate thoroughly the effects of the…

Nuclear Theory · Physics 2023-03-22 Suman Pal , Soumen Podder , Debashree Sen , Gargi Chaudhuri

The effect of model parameters in the equation of state for quark matter on the magnitude of the maximum mass of hybrid stars is examined. Quark matter is described in terms of the extended MIT bag model including corrections for one-gluon…

Nuclear Theory · Physics 2019-03-20 G. B. Alaverdyan , Yu. L. Vartanyan

The properties of the neutron stars are calculated for the hadronic matter within the density-dependent relativistic mean-field model (DD-RMF). The phase transition to the quark matter is studied and the hybrid star matter properties are…

Nuclear Theory · Physics 2021-09-09 I. A. Rather , A. A. Usmani , S. K. Patra

We compute the equation of state (EoS) of strange quark stars (SQSs) with the MIT Bag model using density dependent bag pressure, characterized by a Gaussian distribution function. The bag pressure's density dependence is controlled by…

Nuclear Theory · Physics 2023-11-23 Soumen Podder , Suman Pal , Debashree Sen , Gargi Chaudhuri

We investigate systematically the quark-hadron mixed phase in dense stellar matter, and its influence on compact star structures. The properties of quark matter and hadronic matter are fixed based on various model predictions. Beside…

High Energy Physics - Phenomenology · Physics 2020-07-29 Cheng-Jun Xia , Toshiki Maruyama , Nobutoshi Yasutake , Toshitaka Tatsumi , Hong Shen , Hajime Togashi

As we go from center toward the surface of a neutron star, the state of baryonic matter changes from the de-confined quark-gluon to a mixed phase of quark and hadronic matter, and a thin crust of hadronic matter. For the quark matter,…

Solar and Stellar Astrophysics · Physics 2015-06-15 T. Yazdizadeh , G. H. Bordbar

In this work, we explore how astronomical observations (specifically measurements of masses, radii, and tidal deformabilities) can constrain the presence of quark matter inside neutron stars, namely the phase transition from nuclear matter…

Nuclear Theory · Physics 2025-12-10 Fábio Köpp , César H. Lenzi , César V. Flores , and Débora P. Menezes

We investigate the properties of hybrid stars with the hadron-quark phase transition by using a quasiparticle model. Results from our study indicate that the coupling constant $g$ can stiffen the EOS of hybrid star matter and thus increase…

Nuclear Theory · Physics 2025-03-11 He Liu , Yong-Hang Yang , Yue Han , Peng-Cheng Chu

The composition of the core of neutron stars (NS) is still under debate. One possibility is that because of the high densities reached in their cores, matter could be deconfined into quark matter. We investigate the existence of hybrid…

Nuclear Theory · Physics 2026-02-20 Milena Albino , Tuhin Malik , Márcio Ferreira , Constança Providência

Employing the Korea-IBS-Daegu-SKKU (KIDS) density functional for the hadron phase and the MIT bag model with vector (vBag) model for the quark phase, we obtain hadron-quark phase transition in neutron stars considering Maxwell construction.…

Nuclear Theory · Physics 2024-07-24 Debashree Sen , Hana Gil , Chang Ho Hyun

The equation of state for quark matter is derived for a nonlocal, chiral quark model within the mean field approximation. Special emphasis is on the occurrence of a diquark condensate which signals a phase transition to color…

Astrophysics · Physics 2009-11-07 H. Grigorian , D. Blaschke , D. N. Aguilera

Using a density dependent quark model and a relativistic model within the mean-field approximation for hadrons with density dependent meson-baryon couplings, we construct, for the first time, models that describe hybrid neutron stars…

Nuclear Theory · Physics 2023-09-19 A. Issifu , F. M. da Silva , D. P. Menezes

We study the hadron-quark phase transition in the interior of protoneutron stars. For the hadronic sector, we use a microscopic equation of state involving nucleons and hyperons derived within the finite-temperature…

Astrophysics · Physics 2008-11-26 O. E. Nicotra , M. Baldo , G. F. Burgio , H. -J. Schulze

We study the nucleation of quark matter drops at the center of cold deleptonized neutron stars. This is relevant in the determination of the critical mass $M_{cr}$ of hadronic stars above which it is possible a transition to a quark star…

Astrophysics · Physics 2007-05-23 I. Bombaci , G. Lugones , I. Vidana
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