Heterotic Coset Models and (0,2) String Vacua
Abstract
A Lagrangian definition of a large family of (0,2) supersymmetric conformal field theories may be made by an appropriate gauge invariant combination of a gauged Wess-Zumino-Witten model, right-moving supersymmetry fermions, and left-moving current algebra fermions. Throughout this paper, use is made of the interplay between field theoretic and algebraic techniques (together with supersymmetry) which is facilitated by such a definition. These heterotic coset models are thus studied in some detail, with particular attention paid to the (0,2) analogue of the N=2 minimal models, which coincide with the `monopole' theory of Giddings, Polchinski and Strominger. A family of modular invariant partition functions for these (0,2) minimal models is presented. Some examples of N=1 supersymmetric four dimensional string theories with gauge groups E_6 X G and SO(10) X G are presented, using these minimal models as building blocks. The factor G represents various enhanced symmetry groups made up of products of SU(2) and U(1).
Cite
@article{arxiv.hep-th/9509170,
title = {Heterotic Coset Models and (0,2) String Vacua},
author = {Per Berglund and Clifford V. Johnson and Shamit Kachru and Philippe Zaugg},
journal= {arXiv preprint arXiv:hep-th/9509170},
year = {2009}
}
Comments
53 pages, harvmac (Corrections made to spectra of E_6 examples. Other minor changes.)