Linear \(\Sigma\) model in the Gaussian wave functional approximation. II: Analyticity of the S-matrix and the effective potential/action

DOI10.1016/S0375-9474(02)01293-9zbMath0999.81038arXivhep-th/0210082MaRDI QIDQ1848749

Issei Nakamura, V. Dmitrašinović

Publication date: 13 November 2002

Published in: Nuclear Physics. A (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/hep-th/0210082

zbMATH Keywords

Riemann sheet\(N/D\) methodKällen-Lehmann spectral densities

Mathematics Subject Classification ID

Model quantum field theories (81T10) (S)-matrix theory, etc. in quantum theory (81U20) Dispersion theory, dispersion relations arising in quantum theory (81U30)

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