Vol 3 - Landau, Lifshitz - Quantum mechanics - non-relativistic theory (3ed., 1991) · Problem 133.1

Elastic Collisions

Physics — Landau & Lifshitz · effective-range-wave-function

Problem

Express the effective interaction range

r_0

in terms of the wave function of the stationary state

E = \epsilon

in the ``inner'' region

r \sim a

(Ya. A. Smorodinskii 1948).