Infrared Regularization of Superstring Theory and the One-Loop Calculation of Coupling Constants

Preprint

11 January 1995

preprint
Published by arXiv in arXiv

Abstract

Infrared regularized versions of 4-D N=1 superstring ground states are constructed by curving the spacetime. A similar regularization can be performed in field theory. For the IR regularized string ground states we derive the exact one-loop effective action for non-zero U(1) or chromo-magnetic fields as well as gravitational and axionic-dilatonic fields. This effective action is IR and UV finite. Thus, the one-loop corrections to all couplings (gravitational, gauge and Yukawas) are unabiguously computed. These corrections are necessary for quantitative string superunification predictions at low energies. The one-loop corrections to the couplings are also found to satisfy Infrared Flow Equations.

Keywords

INFRARED REGULARIZED
EFFECTIVE ACTION
LOOP CORRECTIONS
GRAVITATIONAL
REGULARIZED
SUPERSTRING
COUPLINGS

All Related Versions

Version 1, 1995-01-06, ArXiv
Version 2, 1995-01-11, ArXiv
Version 3, 1995-01-18, ArXiv
Version 4, 1995-04-04, ArXiv
Version 5, 1995-04-20, ArXiv
Published version: Nuclear Physics B, 442 (3), 472.

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