Unitarity limits on the mass and radius of dark matter particles
Abstract
Using partial wave unitarity and the observed density of the Universe, it is show that a stable elementary particle which was once in thermal equilibrium cannot have a mass greater than 340 TeV. An extended object which was once in thermal equilibrium cannot have a radius less than 7.5 x 10(exp -7) fm. A lower limit to the relic abundance of such particles is also found.
- Authors:
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab., Batavia, IL (USA)
- OSTI Identifier:
- 7244003
- Report Number(s):
- N-90-14164; NASA-CR-186079; NAS-1.26:186079; FERMILAB-PUB-89/205-A; CFPA-TH-89-013
TRN: 90-026805
- Resource Type:
- Technical Report
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; POSTULATED PARTICLES; ABUNDANCE; MASS; ANNIHILATION; COSMOLOGY; NEUTRINOS; NONLUMINOUS MATTER; THEORETICAL DATA; UNITARITY; UNIVERSE; BASIC INTERACTIONS; DATA; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; FERMIONS; INFORMATION; INTERACTIONS; LEPTONS; MASSLESS PARTICLES; NUMERICAL DATA; 640106* - Astrophysics & Cosmology- Cosmology
Citation Formats
Griest, K, and Kamionkowski, M. Unitarity limits on the mass and radius of dark matter particles. United States: N. p., 1989.
Web.
Griest, K, & Kamionkowski, M. Unitarity limits on the mass and radius of dark matter particles. United States.
Griest, K, and Kamionkowski, M. 1989.
"Unitarity limits on the mass and radius of dark matter particles". United States.
@article{osti_7244003,
title = {Unitarity limits on the mass and radius of dark matter particles},
author = {Griest, K and Kamionkowski, M},
abstractNote = {Using partial wave unitarity and the observed density of the Universe, it is show that a stable elementary particle which was once in thermal equilibrium cannot have a mass greater than 340 TeV. An extended object which was once in thermal equilibrium cannot have a radius less than 7.5 x 10(exp -7) fm. A lower limit to the relic abundance of such particles is also found.},
doi = {},
url = {https://www.osti.gov/biblio/7244003},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 01 00:00:00 EDT 1989},
month = {Fri Sep 01 00:00:00 EDT 1989}
}
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