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Strange quark matter and compact stars [PDF]

open access: yesProgress in Particle and Nuclear Physics, 2005
Astrophysicists distinguish between three different types of compact stars. These are white dwarfs, neutron stars, and black holes. The former contain matter in one of the densest forms found in the Universe which, together with the unprecedented progress in observational astronomy, make such stars superb astrophysical laboratories for a broad range of
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Properties of strange quark matter

Physical Review D, 1993
Assuming that the novel nuclei of [ital A]=370 amu and [ital Z]=14 recently observed in high-energy cosmic rays are really strange quark matter (SQM), the relationship between parameters describing SQM is discussed and the mass formula for SQM is derived by requiring that it yields the observed value of [ital A]=370 amu and [ital Z]=14.
, Kasuya, , Saito, , Yasuè
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Radioactivity in strange quark matter

Physical Review C, 1987
We develop a mass formula for finite lumps of strange quark matter near flavor equilibrium. Our Fermi-gas model includes surface tension and Coulomb energy but not quantum-chromodynamic radiative corrections. Assuming strange matter is stable in bulk, we investigate the radioactive decays of finite strangelets (clumps of strange matter with baryon ...
, Berger, , Jaffe
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Neutrino emissivity of strange quark matter

Physical Review D, 1990
We study the neutrino emissivity of three-flavor degenerate "strange matter" by using a thermodynamic potential calculated to second order in ${\ensuremath{\alpha}}_{c}$ and by solving the Gell-Mann-Low equation for the screened charge ${\ensuremath{\alpha}}_{c}$. No reduction in the emissivity at higher densities is found.
, Goyal, , Anand
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Strange quark matter and models of strange stars

Astrophysics, 1994
In the framework of the MIT bag model we consider absolutely stable strange quark matter consisting of u, d, and s quarks and electrons. For a realistic range of parameters of the quark bag we compute the threshold density for the appearance of strange quark matter that is realized on the surface of self-sustaining strange stars. On the basis of twelve
A K Grigoryan, Yu L Vartanyan
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Strange quarks in matter

Journal of Physics G: Nuclear and Particle Physics, 2002
This conference opening talk presents a short review of recent progress in strangeness production systematics, notably the topic of energy dependence, up to RHIC. The data are confronted with the statistical hadronization model which helps to answer the question of their connection to the parton–hadron phase transformation occuring at upper SPS ...
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Space-Time Geometry of Quark and Strange Quark Matter

Chinese Journal of Astronomy and Astrophysics, 2007
We study quark and strange quark matter in the context of general relativity. For this purpose, we solve Einstein's field equations for quark and strange quark matter in spherical symmetric space-times. We analyze strange quark matter for the different equations of state (EOS) in the spherical symmetric space-times, thus we are able to obtain the space-
Can Aktas, Can Aktas   +1 more
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Higher Dimensional Cosmological Model with Quark and Strange Quark Matter

International Journal of Theoretical Physics, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
G S Khadekar
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Quark Condensate in the Strange Matter

Communications in Theoretical Physics, 2003
In a nonlinear chiral SU(3) framework, we investigate the quark condensate in the strange matter including N, Sigma, Xi, and Lambda, making use of chiral symmetry spontaneous breaking Lagrangian and mean-field approximation. The results show that the chiral symmetry is restored partially when the strange matter density increases and that plays a very
Lu Chang-Fang, Lü Xiao-Fu
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Equation of state of strange quark matter and strange star

Physical Review D, 1991
Using a relativistic version of the Landau theory of a Fermi liquid and a density-dependent quark-mass approach to confinement, the equation of state of strange quark matter has been derived. This equation of state is used to study the stability and some global properties of a strange quark star.
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