4.4 Article Proceedings Paper

The physical meaning of scattering matrix singularities in coupled-channel formalisms

Journal

EUROPEAN PHYSICAL JOURNAL A
Volume 35, Issue 3, Pages 253-266

Publisher

SPRINGER
DOI: 10.1140/epja/i2007-10576-1

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The physical meaning of bare and dressed scattering matrix singularities has been investigated. Special attention has been attributed to the role of the well-known invariance of the scattering matrix with respect to the field transformation of the effective Lagrangian. Examples of evaluating bare and dressed quantities in various models are given.

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