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Title: 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}
}

Technical Report:
Other availability
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