Baryon number penetrability as a measure of isothermal baryon number fluctuations in the early Universe.

Details Baryon number penetrability as a measure of isothermal baryon number fluctuations in the early Universe. Baryon number penetrability as a measure of isothermal baryon number fluctuations in the early Universe.

Jan 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000nuphb.564..145p&link_type=abstract

Nuclear Physics B, Vol. B564, No. 1 - 2, p. 145 - 156

Physics

Nuclear Physics

1

Baryons: Early Universe, Baryons: Cosmology

Scientific paper

The authors have examined the efficiency of the baryon-number transport mechanism across the phase boundary in a cosmological quark-hadron phase transition through the proper estimate of baryon-number penetrability >Σh<. They have derived the double-pair creation probability Pb in terms of single-pair creation probability per unit time and unit volume κm and then obtained an analytical expression for >Σh<. This calculation is free from the uncertainty of the value of double-pair creation probability per unit time and unit volume κb. Finally the variations of double-pair creation probability Pb as well as >Σh< with temperature are shown and compared with other known results.

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