Conceptual Framework for the Big Bang
1)As you run the movie backwards (look back in time), the
Universe shrinks and gets hotter.
2)The average photon increases in energy with decreasing
time, and the photon density goes up like T4 (matter density
like T3).
3)Energy and mass are equivalent, so they will freely
exchange when
E average>mparticlec2 for a given
particle.
4) The particles created from energy
must be equal numbers of matter and antimatter (to
conserve all quantum numbers).
5) Once the matter froze out (going
forward in time), all the antimatter would annihilate with the matter, leaving energy (which gets
redshifted down below the threshold energy to
make particles again). Since there is matter now, there must have been a slight overproduction of matter
compared with antimatter. This tiny
symmetry violation (1 per 100 million) produced all the particles now in the Universe. You can infer that there are 100
million photons for every proton. Where are
they…?
Energy
matter
+
antimatter
Energy