Scattering Theory with Path Integrals

Abstract

Starting from well-known expressions for the $T$-matrix and its derivative in standard nonrelativistic potential scattering I rederive recent path-integral formulations due to Efimov and Barbashov et al. Some new relations follow immediately.

Comments: 13 pages, no figures, Latex with amsmath, amssymb; v2: small changes in text, typos corrected, Eq. (4) enlarged, Ref. 4 properly classified; v3: silly error in Eq. (30) corrected