Results 21 to 30 of about 203,600 (192)
Quark Neutron Layer Stars [PDF]
Astrophys.J. 412 (1993) 213-221, 1993 Typical nuclear equations of state and a quark bag model, surprisingly, allow compact stars with alternate layers of neutrons and quarks. One can determine on the basis of the Gibbs free energy which phase, nuclear or quark, is energetically favorable.
arxiv +1 more source
Dense hadron star in quark degree of freedom
EPJ Web of Conferences, 2014 The quark degree of freedom may play an important role as one studies dense hadron stars which can help to understand the universe origin. We add a temperature dependence to the effective quark mass adopted from a quark-quark interaction on the QCD basis
Tzeng Yiharn, Tzeng S.Y.Tsay
doaj +1 more source
Recent results on cold-QCD from RHIC [PDF]
EPJ Web of Conferences, 2020 Polarized proton-proton collisions at the Relativistic Heavy Ion Collider (RHIC) provide unique opportunities to study the spin structure of the nucleon.
Xu Qinghua
doaj +1 more source
Can stellar mass black holes be quark stars? [PDF]
MNRAS, 400, pp. 1632-1642 (2009), 2009 We investigate the possibility that stellar mass black holes, with masses in the range of $3.8M_{\odot}$ and $6M_{\odot}$, respectively, could be in fact quark stars in the Color-Flavor-Locked (CFL) phase. Depending on the value of the gap parameter, rapidly rotating CFL quark stars can achieve much higher masses than standard neutron stars, thus ...
arxiv +1 more source
Gravitational waves from binary compact star mergers in the context of strange matter
EPJ Web of Conferences, 2018 In this article we will focus on the appearance of the hadron-quark phase transition and the formation of strange matter in the interior region of the hypermassive neutron star and its conjunction with the spectral properties of the emitted gravitational
Hanauske Matthias +4 more
doaj +1 more source
Particles, 2020 The relativistic mean field (RMF) model of the nuclear matter equation of state was modified by including the effect of Pauli-blocking owing to quark exchange between the baryons.
David Blaschke +2 more
doaj +1 more source
The Hadron-quark Crossover in Neutron Star within Gaussian Process Regression Method
The Astrophysical Journal, 2022 The equations of state of the neutron star at the hadron-quark crossover region are interpolated with the Gaussian process regression (GPR) method, which can reduce the randomness of present interpolation schemes.
Kaixuan Huang +3 more
doaj +1 more source
European Physical Journal C: Particles and Fields, 2020 The phase diagram of dense quark matter with chiral imbalance is considered with the conditions of electric neutrality and $$\beta $$ β -equilibrium. It has been shown recently that chiral imbalance can generate charged pion condensation (PC) in dense ...
T. G. Khunjua +2 more
doaj +1 more source
Binary Neutron-Star Mergers with a Crossover Transition to Quark Matter
Universe, 2023 This paper summarizes recent work on the possible gravitational-wave signal from binary neutron-star mergers in which there is a crossover transition to quark matter.
Grant J. Mathews +3 more
doaj +1 more source
Warm asymmetric quark matter and proto-quark stars within the confined-isospin-density-dependent mass model [PDF]
Phys. Rev. D 96, 103001 (2017), 2017 We extend the confined-isospin-density-dependent mass (CIDDM) model to include temperature dependence of the equivalent mass for quarks. Within the CIDDM model, we study the equation of state (EOS) for $\beta$-equilibrium quark matter, quark symmetry energy, quark symmetry free energy, and the properties of quark stars at finite temperature.
arxiv +1 more source