Physics
Scientific paper
Mar 1968
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1968phrv..167.1170h&link_type=abstract
Physical Review, vol. 167, Issue 5, pp. 1170-1175
Physics
44
Scientific paper
In the early high-density high-temperature universe, matter and antimatter are in equilibrium and exist in almost equal quantities. In a comoving element of volume the ratio of the baryon number ΔB to the number of baryons B is small. We must explain why initially there is a slight excess of matter over antimatter and why finally, after annihilation, matter is concentrated into objects of galactic size. By proposing that the initial conditions consist of spatial variations in the baryon number rather than variations in density (i.e., the number of baryons), we can link together the survival and aggregation of matter or antimatter as closely related subjects. Various topics are discussed, such as: the amplification of baryon compositional inhomogeneity ΔBB in an expanding universe; the prestellar hadron, lepton, and radiation eras; the effect of inhomogeneity on final composition; the approximate constancy of the total number of particles (including photons) in a comoving element of volume; the muon-neutrino and electron-neutrino temperatures; and the required amount of initial baryon inhomogeneity.
No associations
LandOfFree
Baryon Inhomogeneity in the Early Universe 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 Baryon Inhomogeneity in the Early Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Baryon Inhomogeneity in the Early Universe will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1385512