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General properties of the dual resonance model

Jun, 1971
21 pages
Published in:
  • Annals Phys. 70 (1972) 378-398
DOI:
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Abstract: (Elsevier)
In this paper we give a general procedure for the construction of the physical states in the case of intercept α(0) = 1. This procedure exhibits in an explicit form the “bootstrap” requirement that the spectrum of the intermediate states, obtained by the factorization of the scattering amplitude, is independent from the particular process used for constructing it. A big advantage of this way is that one avoids the unnecessary introduction of spurious states. The physical states are constructed together with their corresponding operators; this makes it then possible to get scattering amplitudes with the physical states on the external legs.