Some Exact Results on π π Scattering
In present day physics, at least in the field of strongly interacting particles the product of the mathematical rigor times the predictive power or the ability to produce measurable numbers, is approximately a constant. So the few people who want to obtain physical results, by purely deductive means, starting from postulates which are not obviously inconsistent with one another have a very hard time. One may be sometimes tempted to think that they are not really making physics progress. On the other hand, we see the flexibility of certain “physical” theories, when new unexpected experimental facts come in, which shows that these theories are not as predictive as they looked. So it might not be too bad if a minority of theoreticians tries to remain pure, with, in mind, the purpose of helping those who try phenomenological attempts, by producing some limitations which any good theory should fulfill.
KeywordsDispersion Relation Partial Wave Partial Wave Amplitude Absorptive Part Partial Wave Expansion
Unable to display preview. Download preview PDF.
- 3.V. Glaser, in Problems of Theoretical Physics, p.68 (Essays dedicated to N.N.Bogoliubov on his 60th birthday) , publ. Nauka, Moscow (1969); see also: Comptes Rendus de la RCP No. 25, Vol. 7, Department de Mathématiques de l’Université de Strasbourg (1969).Google Scholar
- 5a.A. Martin, Proceedings of the 1967, Conference on Particles and Fields, Interscience Publ., New York (1967), p. 244.Google Scholar
- 7.F. Yndurain, CERN preprint TH. 1122 (1970).Google Scholar
- 8.A. Martin, High Energy Physics and Elementary Particles, IAEA, Vienna (1965), p. 155.Google Scholar
- 11.A. K. Common, unpublished.Google Scholar
- 16.R. Roskies, Yale University preprint (1969).Google Scholar
- 17.O. Piguet and G. Wanders, University of Lausanne preprint (1969).Google Scholar
- 20.G. Auberson, Service de Physique théorique Saclay preprint (1970).Google Scholar
- 23.R. G. Levers and D. Schwela, University of Bonn preprint 2–73 (1970).Google Scholar
- 24.O. Piguet and G. Wanders, Nuovo Cimento 57A, 417 (1968);Google Scholar
- 26.J. C. Le Guillou, A. Morel, and H. Navelet, in preparation.Google Scholar
- 27.G. Wanders, Helv. Phys. Acta 39, 228 (1966).Google Scholar