Cosmological QCD Z(3) phase transition in the 10 TeV temperature range?

Details Cosmological QCD Z(3) phase transition in the 10 TeV temperature range? Cosmological QCD Z(3) phase transition in the 10 TeV temperature range?

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrvl..68..737i&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 68, Feb. 10, 1992, p. 737-740. Research supported by Academy of Finland, Finnish

Physics

28

Cosmology, Grand Unified Theory, Metastable State, Phase Transformations, Quarks, Euclidean Geometry, Fermions, High Temperature, Universe, Vacuum

Scientific paper

At high temperatures, in the presence of quarks, QCD has one stable and two metastable Z(3) vacua. A scenario is proposed in which the universe, after inflationary expansion (for example, at the grand unified scale) lies in one of these metastable vacua. The metastable vacuum decayed at T of about 10 TeV. The inhomogeneities caused by this phase transition are over one-tenth of the horizon radius. As a result of a large pressure difference between stable and metastable vacua their density contrast is also large.

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