Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-03-24
Phys.Rev. D62 (2000) 063505
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX file with four postscript figures
Scientific paper
10.1103/PhysRevD.62.063505
We study the dynamics of first-order phase transition in the early Universe when it was $10-50 \mu s$ old with quarks and gluons condensing into hadrons. We look at how the Universe evolved through the phase transition in small as well as large super cooling scenario, specifically exploring the formation of quark nuggets and their possible survival. The nucleation of the hadron phase introduces new distance scales in the Universe, which we estimate along with the hadron fraction, temperature, nucleation time etc. It is of interest to explore whether there is a relic signature of this transition in the form of quark nuggets which might be identified with the recently observed dark objects in our galactic halo and account for the Dark Matter in the Universe at present.
Chandra Deepak
Goyal Ashok
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