Open Access
A New Mechanism for Baryogenesis
Ian Affleck,Michael Dine +1 more
- 01 Jan 1988
pp 381
877
TL;DR: In this article, a new mechanism for baryogenesis was proposed, where it was argued that the scalar quarks and leptons of a supersymmetric GUT may have large expectation values.
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Abstract: A new mechanism for baryogenesis is proposed. It is argued that, after inflation, the scalar quarks and leptons of a supersymmetric GUT may have large expectation values. The subsequent evolution of such a system is shown to generate a significant baryon density. For typical values of the parameters, n B / n γ may be as large as 10 3 .
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References
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TL;DR: In this article, a coherent scalar field oscillation in the thermal bath is investigated using nonequilibrium quantum field theory, and the Langevin-type equation of motion is obtained which has a memory term and both additive and multiplicative noise terms.
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Analytical and numerical properties of Q-balls
Tuomas Multamäki,Iiro Vilja +1 more
TL;DR: In this paper, stable non-topological solitons, Q-balls, were studied using analytical and numerical methods, and three different physically interesting potentials that support Q-ball solutions were considered: two typical polynomial potentials and a logarithmic potential inspired by supersymmetry.
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Hiding relativistic degrees of freedom in the early universe
Vernon Barger,Vernon Barger,James P. Kneller,Paul Langacker,Paul Langacker,D. Marfatia,D. Marfatia,Gary Steigman,Gary Steigman +8 more
TL;DR: In this article, the authors quantify the extent to which extra relativistic energy density can be concealed by neutrino asymmetry without conflicting with the baryon asymmetry measured by the Wilkinson Microwave Anisotropy Probe (WMAP).
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Inflation, neutrino baryogenesis, and (s)neutrino-induced baryogenesis
TL;DR: In this paper, the authors evaluate the constraints that the COBE observations put on baryogenesis in inflationary cosmologies and present a supersymmetric version of the proposal of Fukugita and Yanagida that the baryon asymmetry of the universe is created by nonperturbative electroweak reprocessing of a lepton asymmetry generated in the decay of heavy right-handed see-saw (s)neutrinos.
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