Higher Derivative Gravitation in Superstrings

Abstract

A discussion of the number of degrees of freedom, and their dynamical properties, in higher derivative gravitational theories is presented. It is shown that non-vanishing $(C_{mnpq}{)}^2$ terms arise in N=1, D=4 superstring Lagrangians due to one-loop radiative corrections with light field internal lines.

Talk presented at STRINGS'95, University of Southern California, Los Angeles, CA, March 13-18, 1995; 6 pages, latex