Unitarity limits on the mass and radius of dark matter particles

Technical Report · Fri Sep 01 00:00:00 EDT 1989

OSTI ID:7244003

Griest, K; Kamionkowski, M

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.

• Research Organization: Fermi National Accelerator Lab., Batavia, IL (USA)
• OSTI ID: 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
• Country of Publication: United States
• Language: English

Related Subjects

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