Supersymmetry breaking in the early universe
- Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, California 95064 (United States)
- Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
- Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309 (United States)
Supersymmetry breaking in the early Universe induces scalar soft potentials with curvature of the order of the Hubble constant. This has a dramatic effect on the coherent production of scalar fields along flat directions. For moduli fields, this breaking generically gives a concrete realization of the moduli problem by determining the field value at early times. However, it suggests a solution if the minimum of the induced potential coincides with the true minimum. For the Affleck-Dine mechanism, large squark and slepton expectation values generally do not result if the induced soft mass squared is positive, but they do occur if it is negative. An acceptable baryon asymmetry can be obtained without subsequent entropy releases and is related to the mass of the lightest neutrino.
- Research Organization:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- DOE Contract Number:
- AC02-76ER03069; AC03-76SF00515
- OSTI ID:
- 76569
- Journal Information:
- Physical Review Letters, Vol. 75, Issue 3; Other Information: PBD: 17 Jul 1995
- Country of Publication:
- United States
- Language:
- English
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