## Dispersion Relations and Their Connection with Causality, Volume 29 |

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### Contents

Gruppo fotograflco dei partecipanti al Corso fuori testo | 1 |

E P Wigner Causality ifMatrix and Collision Matrix | 40 |

Y Wong Dispersion Relations and Applications | 68 |

Copyright | |

7 other sections not shown

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### Common terms and phrases

A-plane amplitude F(s analytic continuation analytic function analytic properties angular momentum assume asymptotic form behavior bound branch cut branch line branch points channel coefficients collision matrix consider contribution corresponding crossing defined derivative diffraction peak discussed dispersion relation domain E. P. Wigner elastic unitarity energy equation essential singularities F+(s Feynman finite fixed poles form factor GeV/c give rise given graphs half-plane Hence high-energy limit imaginary infinity integral interaction internal region interpolation ladder graphs laws of nature mass momenta negative normal threshold nucleon obtained partial-wave amplitudes particles perturbation theory Phys physical region physical sheet physical values pion plane pole term pole trajectories positive problem reactions real axis reduction formulae Regge poles Regge trajectory resonance s-channel S-matrix s-plane satisfy scalar scattering amplitude Section singularities solution spin surface symmetry theorem unitarity condition upper half-plane vanishes variables vector meson wave function write Yukawa potentials zero