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Title: Dark matter candidates

One of the simplest, yet most profound, questions we can ask about the Universe is, how much stuff is in it, and further what is that stuff composed of. Needless to say, the answer to this question has very important implications for the evolution of the Universe, determining both the ultimate fate and the course of structure formation. Remarkably, at this late date in the history of the Universe we still do not have a definitive answer to this simplest of questions---although we have some very intriguing clues. It is known with certainty that most of the material in the Universe is dark, and we have the strong suspicion that the dominant component of material in the Cosmos is not baryons, but rather is exotic relic elementary particles left over from the earliest, very hot epoch of the Universe. If true, the Dark Matter question is a most fundamental one facing both particle physics and cosmology. The leading particle dark matter candidates are: the axion, the neutralino, and a light neutrino species. All three candidates are accessible to experimental tests, and experiments are now in progress. In addition, there are several dark horse, long shot, candidates, including the superheavy magneticmore » monopole and soliton stars. 13 refs.« less
Authors:
Publication Date:
OSTI Identifier:
6494342
Report Number(s):
FNAL/C-89/16-A; CONF-8805229-2
ON: DE89006579
DOE Contract Number:
AC02-76CH03000; AC02-80ER10587
Resource Type:
Conference
Resource Relation:
Conference: 3. ESO-CERN symposium on astronomy, cosmology, and fundamental physics, Bologna, Italy, 16 May 1988; Other Information: Portions of this document are illegible in microfiche products
Research Org:
Fermi National Accelerator Lab., Batavia, IL (USA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; NONLUMINOUS MATTER; DETECTION; COSMOLOGY; INFLATIONARY UNIVERSE; COSMOLOGICAL MODELS; MATHEMATICAL MODELS 640105* -- Astrophysics & Cosmology-- Galaxies