The classification and decays of resonant particles |
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| Authors: | J.L. Rosner |
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| Affiliation: | 1. Department of Physics and Astronomy, Tel-Aviv University, Ramat Aviv, Israel;2. Stanford Linear Accelerator Center, Stanford University, Stanford, Calif. 94305, USA;3. School of Physics and Astronomy, USA;4. University of Minnesota, Minneapolis, Minnesota 55455, USA |
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| Abstract: | The classification of resonant particles and some currently popular symmetries for describing their decays are reviewed. Experimental developments are brought up to date. The successes of SU(3), Regge trajectories, and the quark model are noted. Recent models for decays, based on quark pair creation or on transformation between two kinds of quarks, are discussed and their relation to each other and to SU(6)W is mentioned. Sections are devoted to duality, whose most specific predictions remain to be confirmed, and to the scalar mesons, whose spectrum and decays may be relevant to considerations of broken scale invariance. Suggestions are made for future experimental work. |
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| Keywords: | Permanent address. |
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