Probing the Big Bang with LEP

Conference · Fri Jun 01 00:00:00 EDT 1990

OSTI ID:7188867

Schramm, D N ^[1]

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1. Chicago Univ., IL (USA) Fermi National Accelerator Lab., Batavia, IL (USA)

It is shown that LEP probes the Big Bang in two significant ways: (1) nucleosynthesis and (2) dark matter constraints. In the first case, LEP verifies the cosmological standard model prediction on the number of neutrino types, thus strengthening the conclusion that the cosmological baryon density is {approximately}6% of the critical value. In the second case, LEP shows that the remaining non-baryonic cosmological matter must be somewhat more massive and/or more weakly interacting that the favorite non-baryonic dark matter candidates of a few years ago. 59 refs., 4 figs., 2 tabs.

• Research Organization: Fermi National Accelerator Lab., Batavia, IL (USA)
• Sponsoring Organization: DOE/ER; NSF
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 7188867
• Report Number(s): FNAL/C-90/120-A; CONF-9003168--1; ON: DE90012138; CNN: AST 88-22595; NAGW-1321; NAGW-1340
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMOLOGICAL MODELS
ELEMENTARY PARTICLES
FERMIONS
LEP STORAGE RINGS
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
NONLUMINOUS MATTER
NUCLEOSYNTHESIS
PARTICLE MODELS
STANDARD MODEL
STORAGE RINGS
SYNTHESIS
UNIFIED GAUGE MODELS