Gravity waves and proton decay in a flipped SU(5) hybrid inflation model
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.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of Delaware, Newark, DE (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1454318
- Alternate Identifier(s):
- OSTI ID: 1503866
- Grant/Contract Number:
- SC0013880
- Resource Type:
- Journal Article: Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 97 Journal Issue: 12; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
Rehman, Mansoor Ur, Shafi, Qaisar, and Zubair, Umer. Gravity waves and proton decay in a flipped SU(5) hybrid inflation model. United States: N. p., 2018.
Web. doi:10.1103/PhysRevD.97.123522.
Rehman, Mansoor Ur, Shafi, Qaisar, & Zubair, Umer. Gravity waves and proton decay in a flipped SU(5) hybrid inflation model. United States. https://doi.org/10.1103/PhysRevD.97.123522
Rehman, Mansoor Ur, Shafi, Qaisar, and Zubair, Umer. 2018.
"Gravity waves and proton decay in a flipped SU(5) hybrid inflation model". United States. https://doi.org/10.1103/PhysRevD.97.123522.
@article{osti_1454318,
title = {Gravity waves and proton decay in a flipped SU(5) hybrid inflation model},
author = {Rehman, Mansoor Ur and Shafi, Qaisar and Zubair, Umer},
abstractNote = {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.},
doi = {10.1103/PhysRevD.97.123522},
url = {https://www.osti.gov/biblio/1454318},
journal = {Physical Review D},
issn = {2470-0010},
number = 12,
volume = 97,
place = {United States},
year = {Thu Jun 14 00:00:00 EDT 2018},
month = {Thu Jun 14 00:00:00 EDT 2018}
}
Web of Science
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