Comment on `Dimensional expansion for the delta-function potential'
arXiv:math-ph/9906017 · doi:10.1088/0143-0807/20/5/401
Abstract
I criticize the claim, made in a recent article [C. M. Bender and L. R. Mead, Eur. J. Phys. 20, 117 (1999)], that in order to obtain the correct cross section for the scattering from a two-dimensional delta-function potential one must perform analytic continuation in the dimension of space.
2 pages, LaTeX 2e, iopart style. Reference added. To appear in Eur. J. Phys