The behaviour of effective coupling constants in 'finite' grand unification theories in curved spacetime

Details The behaviour of effective coupling constants in 'finite' grand unification theories in curved spacetime The behaviour of effective coupling constants in 'finite' grand unification theories in curved spacetime

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989cqgra...6..605b&link_type=abstract

Classical and Quantum Gravity (ISSN 0264-9381), vol. 6, May 1, 1989, p. 605-610.

Astronomy and Astrophysics

Astronomy

18

Grand Unified Theory, Gravitational Fields, Space-Time Functions, Astronomical Models, Coupling, Curvature, Invariance, Supergravity, Supersymmetry

Scientific paper

The question of the behavior of effective coupling constants in one-loop 'finite' grand unification theories in curved spacetime is investigated. It is shown that in strong gravitational fields the effective coupling constant, corresponding to the parameter of non-minimal interaction of scalar and gravitational fields, tends to the conformal value or increases in an exponential fashion. The one-loop effective potential is obtained with accurary to linear curvature terms. It is shown that, in external supergravity, supersymmetric finite theories admit asymptotic conformal invariance.

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