Quark-hadron phase transition in the early Universe: Isothermal baryon-number fluctuations and primordial nucleosynthesis

Details Quark-hadron phase transition in the early Universe: Isothermal baryon-number fluctuations and primordial nucleosynthesis Quark-hadron phase transition in the early Universe: Isothermal baryon-number fluctuations and primordial nucleosynthesis

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrvd..37.1380f&link_type=abstract

Physical Review D (Particles and Fields), Volume 37, Issue 6, 15 March 1988, pp.1380-1400

Mathematics

Probability

206

Particle-Theory And Field-Theory Models Of The Early Universe, Origin, Formation, And Abundances Of The Elements, General Properties Of Qcd

Scientific paper

We study the quark-hadron transition in the early Universe and compute the amplitude of isothermal baryon-number fluctuations that emerge from this transition along with their effects on primordial nucleosynthesis. We find that such fluctuations are a natural consequence of a first-order phase transition occurring in the strongly interacting system. Fluctuation-generating mechanisms are discussed. We estimate the nucleation rate and derive the mean separation between fluctuations. It is shown that the amplitude of the fluctuations depends sensitively on the phase coexistence temperature Tc and on the baryon transmission probability Σh at the phase boundary. For realistic values of Σh and Tc the fluctuations are large and have a significant effect on primordial nucleosynthesis yields. With these fluctuations the limit on the baryonic contribution to Ω depends primarily on what is taken to be the primordial 7Li abundance: Ω=1 in baryons would require large 7Li and 2H destruction factors during the evolution of the Galaxy.

Affiliated with

Also associated with

No associations

Rating

Quark-hadron phase transition in the early Universe: Isothermal baryon-number fluctuations and primordial nucleosynthesis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quark-hadron phase transition in the early Universe: Isothermal baryon-number fluctuations and primordial nucleosynthesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quark-hadron phase transition in the early Universe: Isothermal baryon-number fluctuations and primordial nucleosynthesis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1692410