Modified determinantal method

Roy, S. M. ; Blankenbecler, R. (1965) Modified determinantal method Annals of Physics, 35 (2). pp. 314-327. ISSN 0003-4916

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/000349...

Related URL: http://dx.doi.org/10.1016/0003-4916(65)90082-5

Abstract

An improved version of the determinantal method for solving N/D equations is developed. Unlike the determinantal approximation, the accuracy of this method is not limited to small coupling constants. Further, this method guarantees a real residue at the position of a pole in the partial wave amplitude whereas the determinantal approximation yields a complex residue when the pole lies on the left-hand cut in the s-plane. Both nonrelativistic and relativistic cases are considered. Numerical accuracy of the new method is examined in some typical applications.

Item Type:Article
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ID Code:42822
Deposited On:07 Jun 2011 03:55
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