Other
Scientific paper
Feb 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991zphya.338..223h&link_type=abstract
Z. Phys., A, Vol. 338, No. 2, p. 223 - 232
Other
2
Scientific paper
The authors consider dense stars with configurations expected from the SU(3)C×SU(2)W×U(1) standard model of strong and electroweak interactions. They investigate the prospect for the existence of dense stars consisting partially, or entirely, of strange matter by comparing the relative stability between neutron matter and strange matter. It is found that the restriction on the maximum star mass holds in all cases, including a pure strange star, a pure neutron star, and a neutron star with a quark core. It is also found that the choice of both the bag constant B and the strong coupling constant αS has a decisive effect on the relative stability between strange matter and neutron matter. Finally, the authors analyze two cases of boson stars: gluon stars and stars consisting of massive scalar particles (massive bosons). It is found that, in the case of gluon stars, the presence of the bag constant in the QCD vacuum yields results very similar to that found in quark stars. On the other hand, soliton stars consisting of massive bosons exist if there is some background pressure which plays the role similar to the bag constant for lowering the matter pressure. The stability problem for both gluon stars and soliton stars is briefly discussed.
Hwang Wei-Yan Pauchy
Liu Chan Chiang
Tzeng K. C.
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