منابع مشابه
Strangeness Production in Neutron Stars
Production of strange quarks in neutron stars is investigated in this work. Three cases, one in which the energy and neutrinos produced in the strangeness production reactions are retained in the reaction region, second in which the neutrinos are allowed to escape the reaction region but the energy is retained and the third in which both the energy and neutrinos escape the reaction region are c...
متن کاملRelation of Strangeness Nuggets to Strangeness Condensation and the Maximum Mass of Neutron Stars
The recent experimental indications of density dependence in the pion decay constant f π and ω meson mass m ⋆ ω and the discovery of S (3115) and other strange “nuggets” are providing a strong support for kaon condensation in dense hadronic matter, thereby re-kindling the interest in the issue of the critical stable mass of neutron stars. The density-dependent quantities provide increases in th...
متن کاملStrangeness Nucleation in Neutron Star Matter
We study the transition from npe-type nuclear matter (consisting of neutrons, protons, and electrons) to matter containing strangeness, using a Walecka-type model predicting a first-order kaon-condensate phase transition. We examine the free energy of droplets of K-matter as the density, temperature, and neutrino fraction are varied. Langer nucleation rate theory is then used to approximate the...
متن کاملStrangeness and Metastable Neutron Stars : What Might have Happened to SN 1987 A
Immediately after they are born, neutron stars are characterized by an entropy per baryon of order unity and by the presence of trapped neutrinos. If the only hadrons in the star are nucleons, these effects slightly reduce the maximum mass relative to cold, catalyzed matter. However, if negatively charged particles in the form of hyperons, a kaon condensate, or quarks are also present, these ef...
متن کاملResonant production of gamma rays in jolted cold neutron stars
Acoustic shock waves passing through colliding cold neutron stars can cause repetitive superconducting phase transitions in which the proton condensate relaxes to its equilibrium value via coherent oscillations. As a result, a resonant non-thermal production of gamma rays in the MeV energy range with power up to 10 erg/s can take place during the short period of time before the nuclear matter i...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 1996
ISSN: 0375-9474
DOI: 10.1016/0375-9474(95)00389-4