Relation between scattering and production amplitude--Case of intermediate {sigma}-particle in {pi}{pi}-system--
Journal Article
·
· AIP Conference Proceedings
- Department of Physics, University of Tokyo, Tokyo 113 (Japan)
- Atomic Energy Research Institute, College of Science and Technology, Nihon University, Tokyo 101 (Japan)
- KEK, Oho, Tsukuba, Ibaraki 305 (Japan)
The relation between scattering and production amplitudes are investigated, using a simple field theoretical model, from the general viewpoint of unitarity and the applicability of final state interaction (FSI-) theorem. The IA-method and VMW-method, which are applied to our phenomenological analyses [2,3] suggesting the {sigma}-existence, are obtained as the physical state representations of scattering and production amplitudes, respectively. Moreover, the VMW-method is shown to be an effective method to obtain the resonance properties from general production processes, while the conventional analyses based on the 'universality' of {pi}{pi}-scattering amplitude are powerless for this purpose.
- OSTI ID:
- 21185763
- Journal Information:
- AIP Conference Proceedings, Vol. 432, Issue 1; Conference: 7. international conference on hadron spectroscopy, Upton, NY (United States), 25-30 Aug 1997; Other Information: DOI: 10.1063/1.56062; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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