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Colour-Charged Quark Matter in Astrophysics?

Qiu Cong-Xin1 and Xu Ren-Xin2

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Colour confinement is only a supposition, which has not yet been proven in QCD. Here we propose that macroscopic quark–gluon plasma in astrophysics could hardly maintain colourless because of causality. It is expected that the existence of chromatic strange quark stars as well as chromatic strangelets preserved from the QCD phase transition in the early Universe could be unavoidable if their colourless correspondents do exist.


PACS

98.80.Cq Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.)

97.10.Cv Stellar structure, interiors, evolution, nucleosynthesis, ages

97.60.Jd Neutron stars

12.38.Mh Quark–gluon plasma

98.80.Es Observational cosmology (including Hubble constant, distance scale, cosmological constant, early Universe, etc)

Subjects

Gravitation and cosmology

Particle physics and field theory

Astrophysics and astroparticles

Dates

Issue 12 (December 2006)

Received 15 August 2006



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