Nonstandard parafermions and string compactification Original Research Article

Nonstandard parafermions are built and their central charges and dimensions are calculated. We then construct new image superconformal field theories by tensoring the parafermions with a free boson. We study the spectrum and modular transformations of these theories. Superstring and heterotic strings in four dimensions are then obtained by tensoring the new superconformal field theories along with some minimal models. The generations and antigenerations are studied. We give an example of the image theory which is shown to have two net generations.