Baryon number fluctuations in a quark-hadron phase transition

Details Baryon number fluctuations in a quark-hadron phase transition Baryon number fluctuations in a quark-hadron phase transition

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994bnfq.book.....s&link_type=abstract

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Physics

26

Baryons, Correction, Hadrons, Plasmas (Physics), Quantum Chromodynamics, Universe, Critical Temperature, Nuclear Fusion

Scientific paper

Isothermal baryon number fluctuations arising from a first-order quark-hadron phase transition in the early universe are obtained by including the quark-gluon interactions up to the order g(sup 3)(sub s) in the perturbative QCD coupling constant in the quark-gluon plasma (QGP) phase and the finite size volume corrections for the hadrons in the hadron-resonance gas (HRG) and their effects on the primordial nucleosynthesis (PNS) are analyzed. The ratio of the baryon-number densities in the QGP and HRG phases at the critical temperature T(sub c) is larger than one in the range 150 MeV less than T(sub c) less than 260 MeV. However, it is far larger than one even when T(sub c) is outside this range thus affecting primordial nucleosynthesis significantly.

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