Department of Physics Papers

Document Type

Journal Article

Date of this Version

7-1989

Publication Source

Physical Review Letters

Volume

63

Issue

1

Start Page

24

Last Page

27

DOI

10.1103/PhysRevLett.63.24

Abstract

We show how to treat boundary divergences in heterotic string theory covariantly and unambiguously. The method applies even to theories with nonvanishing tadpoles; in this case the Fischler-Susskind mechanism sufficies to ensure well defined answers. Also n-point functions are well defined with no special string-tension renormalizations. As an example we find the loop corrections to the linearized background equations of motion for the O(16)×O(16) string needed to give unambiguous, finite scattering amplitudes. No splitting or projection of supermoduli space is needed.

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Date Posted: 01 May 2017

This document has been peer reviewed.