We use the modified quark-meson coupling (MQMC) model to study the composition profile of neutron star matter and compare the results with those calculated by quantum hadrodynamics (QHD). Both MQMC and QHD model parameters are adjusted to produce exactly the same saturation properties so that we...
Keywords: Neutron stars; equations of state of neutron-star matter; quark deconfine- ment. 1. Introduction Neutron stars are the densest macroscopic objects in the universe. They represent the limit beyond which gravity overwhelm all the other forces of nature and lead to the formation of a ...
Define down quark. down quark synonyms, down quark pronunciation, down quark translation, English dictionary definition of down quark. n. Abbr. d The flavor of quark that has a charge of - 1/3 and a mass about 10 times that of an electron, belongs to the
CHEMICAL EVOLUTION OF STRONGLY MAGNETIZED QUARK CORE IN A NEWBORN NEUTRON STARTheoretical or Mathematical/ Landau levelsneutron starsquantum chromodynamicsquark confinementquark matterquark productionspace-time configurationsstar formationstellar compositionstellar evolution/ chemical evolution...
We investigate the role of trapped neutrinos on the composition of protoneutron stars with quark-hadron phase transitions. Trapped neutrinos shift the transition to higher baryon densities and also reduce the extent of a mixed phase in comparison to neutrino-free matter. Thus, a mixed phase of ba...
Baryons are characterized by abaryon number,B,of 1. Their antiparticles, calledantibaryons, have a baryon number of −1. Anatomcontaining, for example, oneprotonand oneneutron(each with a baryon number of 1) has a baryon number of 2. In addition to their differences incomposition, baryon...
The latter transition may be induced by a relatively small change in compound composition (cf. the behavior of La2 − xSrxO4 or YBa2Cu3O7 − x as a function of x). It is quite interesting to note that oxides such as YBa2Cu3O7 − x may be synthesized in either insulating (x ...
composition and stability of hybrid stars with hyperons and quark color-superconductivity 热度: Review of Bayer Pattern Color Filter Array (CFA) Demosaicing with ... 热度: Chiosi Astrophysics of Compact Objects White Dwarfs Neutron Stars and Black Holes 热度: 相关推荐 February2, 2008 9:46...
The structure and basic properties of dense nuclear matter still remain one of the open problems of Physics. In particular, the composition of the matter that composes neutron stars is under theoretical and experimental investigation. Among the theories that have been proposed, apart from the classi...
For resonances, X˜ i is still related to the squared wave function of the channel i, in a phase prescription that automatically renders the wave function real for bound states, and so it can be used as a measure of the weight of that meson-baryon channel in the composition of the ...