Prospects for supergravity
Abstract
Present particle phenomenology appears to be successfully described by a renormalizable gauge theory based on the lowenergy 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 to the 14th power  10 to the 15th power GeV, where one can attempt a grand unified theory based on a gauge group with only one coupling constant and containing the lowenergy group. A natural way to unify gravity with lowerspin 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.
 Publication:

Presented at 20th Intern. Conf. on High Energy Phys
 Pub Date:
 August 1980
 Bibcode:
 1980hep..conf.....Z
 Keywords:

 Gravitation;
 Gravitation Theory;
 High Gravity Environments;
 Particle Theory;
 Theoretical Physics;
 Acceleration (Physics);
 Einstein Equations;
 Nuclear Physics;
 Particles;
 Phenomenology;
 Geophysics