Magic Moments: A Collaboration with John Bell

Abstract

I want to give an impression of the time I spent together with John S. Bell, of the atmosphere of our collaboration and friendship. I briefly review our work, the methods of nonrelativistic approximations to quantum field theory for calculating the properties of heavy quark-antiquark bound states.

Comments: 23 pages, 15 figures, Contribution to Quantum [Un]speakables, Conference in commemoration of John S. Bell, 10 - 14 November 2000, University of Vienna