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Gravity waves and proton decay in a flipped SU(5) hybrid inflation model.
- Source :
-
Physical Review D: Particles, Fields, Gravitation & Cosmology . 6/15/2018, Vol. 97 Issue 12, p1-1. 1p. - Publication Year :
- 2018
-
Abstract
- We revisit supersymmetric hybrid inflation in the context of the flipped SU(5) model. With minimal superpotential and minimal Kähler potential, and soft supersymmetry (SUSY) masses of order (1-100) TeV, compatibility with the Planck data yields a symmetry breaking scale M of flipped SU(5) close to (2-4)×1015 GeV. This disagrees with the lower limit M≳7×1015 GeV set from proton decay searches by the Super-Kamiokande collaboration. We show how M close to the unification scale 2×1016 GeV can be reconciled with SUSY hybrid inflation by employing a nonminimal Kähler potential. Proton decays into e+π0 with an estimated lifetime of order 1036 years. The tensor to scalar ratio r in this case can approach observable values ~10-4-10-3. [ABSTRACT FROM AUTHOR]
- Subjects :
- *GRAVITATIONAL waves
*PROTON decay
*SUPERSYMMETRY
Subjects
Details
- Language :
- English
- ISSN :
- 24700010
- Volume :
- 97
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Physical Review D: Particles, Fields, Gravitation & Cosmology
- Publication Type :
- Periodical
- Accession number :
- 130556761
- Full Text :
- https://doi.org/10.1103/PhysRevD.97.123522