Supersymmetric relics from the big bang
Abstract
In this paper, we consider the cosmological constraints on supersymmetric theories with a new, stable particle. Circumstantial evidence points to a neutral gauge/Higgs fermion as the best candidate for this particle, and we derive bounds on the parameters in the lagrangian which govern its mass and couplings. One favored possibility is that the lightest neutral supersymmetric particle is predominantly a photino ~γ with mass above 12 GeV, while another is that the lightest neutral supersymmetric particle is a Higgs fermion with mass above 5 GeV or less than O(100) eV. We also point out that a gravitino mass of 10 to 100 GeV implies that the temperature after completion of an inflationary phase cannot be above 10 14 GeV, and probably not above 3 × 10 12 GeV. Finally, this imposes constraints on mechanisms for generating the baryon number of the universe.
- Authors:
-
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- European Organization for Nuclear Research (CERN), Geneva (Switzerland)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1432463
- Report Number(s):
- SLAC-PUB-3171
Journal ID: ISSN 0550-3213; PII: 0550321384904619
- Grant/Contract Number:
- AC03-76SF00515
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Physics. B
- Additional Journal Information:
- Journal Volume: 238; Journal Issue: 2; Journal ID: ISSN 0550-3213
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Ellis, John, Hagelin, J. S., Nanopoulos, D. V., Olive, K., and Srednicki, M. Supersymmetric relics from the big bang. United States: N. p., 1984.
Web. doi:10.1016/0550-3213(84)90461-9.
Ellis, John, Hagelin, J. S., Nanopoulos, D. V., Olive, K., & Srednicki, M. Supersymmetric relics from the big bang. United States. doi:10.1016/0550-3213(84)90461-9.
Ellis, John, Hagelin, J. S., Nanopoulos, D. V., Olive, K., and Srednicki, M. Fri .
"Supersymmetric relics from the big bang". United States. doi:10.1016/0550-3213(84)90461-9. https://www.osti.gov/servlets/purl/1432463.
@article{osti_1432463,
title = {Supersymmetric relics from the big bang},
author = {Ellis, John and Hagelin, J. S. and Nanopoulos, D. V. and Olive, K. and Srednicki, M.},
abstractNote = {In this paper, we consider the cosmological constraints on supersymmetric theories with a new, stable particle. Circumstantial evidence points to a neutral gauge/Higgs fermion as the best candidate for this particle, and we derive bounds on the parameters in the lagrangian which govern its mass and couplings. One favored possibility is that the lightest neutral supersymmetric particle is predominantly a photino ~γ with mass above 12 GeV, while another is that the lightest neutral supersymmetric particle is a Higgs fermion with mass above 5 GeV or less than O(100) eV. We also point out that a gravitino mass of 10 to 100 GeV implies that the temperature after completion of an inflationary phase cannot be above 1014 GeV, and probably not above 3 × 1012 GeV. Finally, this imposes constraints on mechanisms for generating the baryon number of the universe.},
doi = {10.1016/0550-3213(84)90461-9},
journal = {Nuclear Physics. B},
number = 2,
volume = 238,
place = {United States},
year = {1984},
month = {6}
}
Search WorldCat to find libraries that may hold this journalWeb of Science