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Inverse phase transitions [electronic resource] : Does baryogenesis lead to dark matter?

Published
Arlington, Va. : National Science Foundation (U.S.), 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
8 pages : digital, PDF file
Additional Creators
Fermi National Accelerator Laboratory, National Science Foundation (U.S.), and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The phase structure of a field theory can have two qualitatively different forms- the less familiar of which involves high temperature symmetry breaking and low temperature symmetry restoration and is dubbed an inverse phase transition. After a general discussion of such inverse phase transitions we present an application of this phenomenon in which the symmetry under consideration is baryon number. The model has the virtues of generating the observed quark-antiquark asymmetry (with no explicit baryon number violating interactions) while simultaneously providing the dark matter known to exist in galactic halos and clusters of galaxies. Constraints from cosmology and particle physics highly constrain the mass of this dark matter candidate: 40GeV < m{sub phi} < 50GeV. In this way we demonstrate our main conclusion: the exotic phase structure of the inverted form can give rise to novel, predictive and testable cosmological phenomenon.
Report Numbers
E 1.99:fnal/c--92/72-a
E 1.99: conf-9108175--3
E 1.99: clns--92-1133
clns--92-1133
conf-9108175--3
fnal/c--92/72-a
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Note
Published through SciTech Connect.
02/01/1992.
"fnal/c--92/72-a"
" conf-9108175--3"
" clns--92-1133"
"DE92013022"
": Grant NAGW-2381"
15. Johns Hopkins workshop on current problems in particle theory,Baltimore, MD (United States),26-28 Aug 1991.
Dodelson, S.; Greene, B.R.; Widrow, L.M.
Funding Information
AC02-76CH03000
View MARC record | catkey: 13827023