%0 Journal Article
%T A-Genus and the Sigma Model
%A Kelly Jay Davis
%J Physics
%D 1994
%I arXiv
%X This set of lecture notes presents a pedantic derivation of the connection between the $ {\hat A} $-genus of spacetime's loop space and the genus one partition function of the $ N=1/2 $ sigma model. It concludes with some remarks on possible generalizations of the $ {\hat A} $-genus which follow naturally from the `stringy' point-of-view but have yet to be explored mathematically. This set of lecture notes is geared towards a mathematical audience unfamiliar with the $ N=1/2 $ sigma model.
%U http://arxiv.org/abs/hep-th/9406023v1