A Brief Introduction to Dispersion Relations With Modern Application

This text offers a brief introduction to the dispersion relations as an approach to calculate S-matrix elements, a formalism that allows one to take advantage of the analytical structure of scattering amplitudes following the basic principles of unit

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José Antonio Oller

A Brief Introduction to Dispersion Relations With Modern Applications 123

SpringerBriefs in Physics Series Editors B. Ananthanarayan, Centre for High Energy Physics, Indian Institute of Science, Bangalore, India Egor Babaev, Physics Department, University of Massachusetts Amherst, Amherst, MA, USA Malcolm Bremer, H H Wills Physics Laboratory, University of Bristol, Bristol, UK Xavier Calmet, Department of Physics and Astronomy, University of Sussex, Brighton, UK Francesca Di Lodovico, Department of Physics, Queen Mary University of London, London, UK Pablo Esquinazi, Institute for Experimental Physics II, University of Leipzig, Leipzig, Germany Maarten Hoogerland, University of Auckland, Auckland, New Zealand Eric Le Ru, School of Chemical and Physical Sciences, Victoria University of Wellington, Kelburn, Wellington, New Zealand Hans-Joachim Lewerenz, California Institute of Technology, Pasadena, CA, USA Dario Narducci, University of Milano-Bicocca, Milano, Italy James Overduin, Towson University, Towson, MD, USA Vesselin Petkov, Montreal, QC, Canada Stefan Theisen, Max-Planck-Institut für Gravitationsphys, Golm, Germany Charles H.-T. Wang, Department of Physics, The University of Aberdeen, Aberdeen, UK Andrew Whitaker, Department of Physics and Astronomy, Queen’s University Belfast, Belfast, UK

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José Antonio Oller

A Brief Introduction to Dispersion Relations With Modern Applications

123

José Antonio Oller Departamento de Física Universidad de Murcia Murcia, Spain

ISSN 2191-5423 ISSN 2191-5431 (electronic) SpringerBriefs in Physics ISBN 978-3-030-13581-2 I