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Conditions for bound states with a given set of interaction poles in chew-mandelstam theory

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Il Nuovo Cimento (1955-1965)

Summary

Using the potential model with the left-hand cut approximated byn poles, conditions are derived under which no extra « bound state » poles need be introduced. The procedure adopted is to find the domain inn-space convered by the sets of values of residues in which no extra poles need be introduced. It is shown that any point in this domain can be reached by adjusting onlyn poles on the unphysical sheet.

Riassunto

Usando il modello a potenziali con il taglio sinistro approssimato dan poli, si deducono le condizioni per le quali non è necessario introdurre poli extra di « stato legato ». Il procedimento adottato consiste nel trovare il dominio nellon-spazio coperto da gruppi di valori dei residui in cui non è necessario introdurre poli extra. Si mostra che qualunque punto di questo dominio può essere raggiunto sistemando solon poli sul piano non fisico.

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References

  1. A summary of the dynamics is given byG. F. Chew:Double Dispersion Relations U.C.R.L. 9289 (June 1960), along with further references.

  2. Seee.g. J. W. Moffatt:R.I.A.S., preprints (1960).

  3. L. Castillejo, R. H. Dalitz andF. J. Dyson:Phys. Rev.,101, 453 (1956).

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  4. R. Jost:Helv. Phys. Acta,20, 256 (1947).

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Fowler, M. Conditions for bound states with a given set of interaction poles in chew-mandelstam theory. Nuovo Cim 20, 478–486 (1961). https://doi.org/10.1007/BF02731495

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  • DOI: https://doi.org/10.1007/BF02731495

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