Various regularization schemes used in quantum field theory, including the
widely used dimensional regularization scheme, and the concept of renormali
zation, are introduced through the study of scattering from an attractive D
irac delta potential in more than one dimension. This is expected to make s
uch advanced concepts and techniques available to enthusiastic beginners wi
thin the realm of elementary quantum mechanics. (C) 1998 American Associati
on of Physics Teachers.