Supercosmology revitalized

B. A. Campbell; J. Ellis; J. S. Hagelin; D. V. Nanopoulos; K. A. Olive

doi:10.1016/0370-2693(87)90400-X

Supercosmology revitalized

B. A. Campbell, J. Ellis, J. S. Hagelin, D. V. Nanopoulos, K. A. Olive

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

Strong coupling effects can avert excess entropy production in supersymmetric models with a large intermediate scale due to symmetry breaking along a flat direction in the effective potential. This is because strong-coupling effects may break supersymmetry giving a large vacuum energy which destabilizes the symmetric field configuration. Alternatively, the reduced number of degrees of freedom in the confined phase destabilized the symmetric field configuration at a high temperature T≫m_w. This principle is exhibited in a simple supersymmetric flipped SU(5)×U(1) GUT model inspired by the superstring. Compatible scenarios for baryosynthesis are briefly discussed.

Original language	English (US)
Pages (from-to)	355-362
Number of pages	8
Journal	Physics Letters B
Volume	197
Issue number	3
DOIs	https://doi.org/10.1016/0370-2693(87)90400-X
State	Published - Oct 29 1987

Bibliographical note

Funding Information:
We would like to thank L. Corners, A. Deans, S. Kelley, R. Parker, R. Ticciati and G. Veneziano for valuable conversations. B.A.C. thanks the CERN Theory Division for its kind hospitality. His research was supported by NSERC Canada under grant A8863. The work of D.V.N. was supported in part by DOE grant DE-AC02-76ER0081 and in part by the University of Wisconsin Research Committee with funds granted by the Wisconsin Alumni Research Foundation. The work of K.A.O. was supported in part by DOE grant DE-AC02-83ER-40105.

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abstract = "Strong coupling effects can avert excess entropy production in supersymmetric models with a large intermediate scale due to symmetry breaking along a flat direction in the effective potential. This is because strong-coupling effects may break supersymmetry giving a large vacuum energy which destabilizes the symmetric field configuration. Alternatively, the reduced number of degrees of freedom in the confined phase destabilized the symmetric field configuration at a high temperature T≫mw. This principle is exhibited in a simple supersymmetric flipped SU(5)×U(1) GUT model inspired by the superstring. Compatible scenarios for baryosynthesis are briefly discussed.",

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AU - Ellis, J.

AU - Hagelin, J. S.

AU - Nanopoulos, D. V.

AU - Olive, K. A.

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AB - Strong coupling effects can avert excess entropy production in supersymmetric models with a large intermediate scale due to symmetry breaking along a flat direction in the effective potential. This is because strong-coupling effects may break supersymmetry giving a large vacuum energy which destabilizes the symmetric field configuration. Alternatively, the reduced number of degrees of freedom in the confined phase destabilized the symmetric field configuration at a high temperature T≫mw. This principle is exhibited in a simple supersymmetric flipped SU(5)×U(1) GUT model inspired by the superstring. Compatible scenarios for baryosynthesis are briefly discussed.

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Supercosmology revitalized

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