Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....54..823s&link_type=abstract
Astronomy and Astrophysics, vol. 54, no. 3, Feb. 1977, p. 823-836.
Astronomy and Astrophysics
Astrophysics
22
Big Bang Cosmology, Dirac Equation, Field Theory (Physics), Particle Production, Relativity, Universe, Astrophysics, Charged Particles, Density (Number/Volume), Gravitation Theory, Particle Density (Concentration), Space-Time Functions
Scientific paper
The paper discusses creation of particles with spin 1/2 in what is termed a noncoherent manner. Particle creation rate and the rate of energy production out of the vacuum are calculated at every point of time by the use of the quantized free Dirac field in an expanding Universe with spherical three-dimensional space. The particle number of the Universe is determined as function of the radius of curvature by integration of the creation rate, while neglecting particle annihilation into the vacuum. Self-consistent integration of the Friedman cosmological field equations of gravitation is performed, where the energy is represented by particles with spin 1/2 created by the expansion of the Universe itself. One solution type resulting from the integration is found suitable for a description of the Universe. According to it the particle number increases linearly with radius of curvature and matter density decreases in inverse proportion to the square of it. The results cannot be extended to the earliest stage of the Universe, but up to 90% of the present matter could have been produced during later stages.
Dehnen Heinz
Schaefer Gail
No associations
LandOfFree
On the origin of matter in the 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 On the origin of matter in the Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the origin of matter in the Universe will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-798912