String duality and modular forms
Abstract
Tests of duality between heterotic strings on K3 × T^{2} (restricted on certain Narain moduli subspaces) and type IIA strings on K3fibered CalabiYau threefolds are attempted in the weak coupling regime on the heterotic side by identifying pertinent modular forms related to the computations of string threshold corrections. Concretely we discuss in parallel the three cases associated with CalabiYau manifolds (A) : X(6,2,2,1,1)^{252}_{2}, (B) :X (12,8,2,1,1)^{480}_{3} and (C) : X(10,3,3,2,2)^{132}_{4} on the type IIA side.
 Publication:

Physics Letters B
 Pub Date:
 February 1997
 DOI:
 10.1016/S03702693(97)001469
 arXiv:
 arXiv:hepth/9607078
 Bibcode:
 1997PhLB..397...51K
 Keywords:

 High Energy Physics  Theory
 EPrint:
 17 pages, LaTeX 2.09