Physics – Mathematical Physics
Scientific paper
1999-06-21
Eur. J. Phys. 20, L33 (1999).
Physics
Mathematical Physics
2 pages, LaTeX 2e, iopart style. Reference added. To appear in Eur. J. Phys
Scientific paper
10.1088/0143-0807/20/5/401
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.
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