Mar 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvd..39.1611c&link_type=abstract
Physical Review D (Particles and Fields), Volume 39, Issue 6, 15 March 1989, pp.1611-1625
Physics
5
Gravity In More Than Four Dimensions, Kaluza-Klein Theory, Unified Field Theories, Alternative Theories Of Gravity, Spontaneous And Radiative Symmetry Breaking
Scientific paper
Superstrings with critical dimension two and two real bosonic spacetime coordinates may serve as useful toy models for the study of string properties. We present details of several such toy superstrings including open, closed, and heterotic models. Conformal methods are used to establish the spectrum and dimensionality. The spin fields are provided and Becchi-Rouet-Stora-Tyutin- (BRST-) invariant vertex operators are constructed. Four-point tree-level and four-point one-loop amplitudes in these models are obtained. The closed and heterotic toy superstrings are shown to be modular invariant to this order.
Corvi Marco
Kostelecky Alan V.
Moxhay Peter
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