Prospects for supergravity

Conference · Fri Aug 01 00:00:00 EDT 1980

OSTI ID:5095028

Zumino, B

Present particle phenomenology appears to be successfully described by a renormalizable gauge theory based on the low-energy group SU(3)/sub color/ x SU(2)/sub left/ x U(1). The three effective coupling constants of this theory vary with energy according to the renormalization group equations and become approximately equal at an energy of about 10/sup 14/ - 10/sup 15/ GeV, where one can attempt a grand unified theory (GUT) based on a gauge group with only one coupling constant and containing the low-energy group. The grand unification energy is very large and not much smaller than the Planck mass m/sub P/approx. = 10/sup 19/ GeV, where gravity becomes important. A natural way to unify gravity with lower-spin fields is provided by supergravity, the supersymmetric extension of Einstein's gravity. The largest supergravity theory (largest theory with a supermultiplet with maximum spin not exceeding two) is the N = 8 theory (N is the number of supersymmetries), which has an SO(8) internal symmetry. A GUT with N = 8 supergravity is considered. (RWR)

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 5095028
• Report Number(s): FERMILAB-CONF-80/74-THY; CONF-800724-24; TRN: 80-017340
• Resource Relation: Conference: 20. international conference on high energy physics, Madison, WI, USA, 17 Jul 1980
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
SUPERGRAVITY
UNIFIED GAUGE MODELS
SO GROUPS
SU-8 GROUPS
SUPERMULTIPLETS
LIE GROUPS
MATHEMATICAL MODELS
MULTIPLETS
PARTICLE MODELS
SU GROUPS
SYMMETRY GROUPS
645201* - High Energy Physics- Particle Interactions & Properties-Theoretical- General & Scattering Theory
645400 - High Energy Physics- Field Theory