Mathematics – Logic
Scientific paper
Jul 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvd..42..326d&link_type=abstract
Physical Review D (Particles and Fields), Volume 42, Issue 2, 15 July 1990, pp.326-342
Mathematics
Logic
37
Scientific paper
Baryon number is conserved in all interactions probed by present-day experiments. If baryon number is strictly conserved then currently popular scenarios for baryogenesis will have to be reexamined. We discuss a new paradigm for baryogenesis in which the fundamental Lagrangian is baryon conserving [invariant under U(1)B]. At high temperatures, U(1)B is spontaneously broken and an excess of quarks over antiquarks of 10-10s(s==entropy density) is produced. Today, U(1)B is restored. The most striking consequence of our assumptions is that the baryon number of the Universe is constant. During spontaneous symmetry breaking, the excess of baryons over antibaryons in the quark fields is exactly compensated by antibaryons hidden in the vacuum. Today, antibaryons appear either as massive U(1)B charged scalar particles or as stable, nontopological bubbles of antimatter. One intriguing possibility suggested by our scenario is that the dark matter may be antimatter.
Dodelson Scott
Widrow Lawrence M.
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