We discuss the situation where attractive and repulsive portions of the inter-particle potential both contribute significantly to glass formation. We introduce the square-well potential as prototypical model for this situation, and {\it reject} the Baxter as a useful model for comparison to experiment on glasses, based on our treatment within mode coupling theory. We present explicit results for various well-widths, and show that, for narrow wells, there is a useful analytical formula that would be suitable for experimentalist working in the field of colloidal science. We raise the question as to whether, in a more exact treatment, the sticky sphere limit might have an infinite glass transition temperature, or a high but finite one.
@article{arxiv.cond-mat/0111014,
title = {Kinetic Arrest Originating in Competition between\linebreak Attractive Interaction and Packing Force},
author = {G. Foffi and E. Zaccarelli and F. Sciortino and P. Tartaglia and K. A. Dawson},
journal= {arXiv preprint arXiv:cond-mat/0111014},
year = {2007}
}