Skip to main content
Log in

The maximum analyticity principle in the angular momentum

  • Published:
Il Nuovo Cimento (1955-1965)

Summary

Chew has proposed to extend his maximum analyticity principle to angular momentum. So far analyticity of the scattering amplitude in the angular momentuml has been proved for potential scattering only when Re(l) > — 1/2. According to Chew it ought to be possible to extend this analyticity in the wholel plane, apart from those singularities which have a clear physical interpretation in terms of dynamical resonances or bound states. In this paper it is shown that a potential with a strongly repulsive core may be the way out of the dilemma in the sense that the resulting amplitude is then even in (l + 1/2) and the desired analytical continuation is then trivial.

Riassunto

Chew ha proposto di estendere il suo principio di massima analiticità al momento angolare. Finora l’analiticità nel momento angolarel è stata dimostrata per l’ampiezza di diffusione da potenziale soltanto quando Re(l) > — 1/2. Secondo Chew, dovrebbe essere possibile estendere questa analiticità nel piano completo dil eccetto per quelle singolarità che hanno una chiara interpretazione fisica in termini di risonanze dinamiche o stati legati. In questo lavoro si mostra che un potenziale con un core fortemente repulsivo può essere la via per superare questa difficoltà nel senso che l’ampiezza che ne risulta è allora pari in (l + 1/2) e la voluta continuazione analitica è allora banale.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. T. Regge:Nuovo Cimento,14, 951 (1959);18, 947 (1960);A. Bottino, A. M. Longoni andT. Regge:Nuovo Cimento,23, 954 (1962).

    Article  MathSciNet  MATH  Google Scholar 

  2. R. Blankenbecler, M. L. Goldberger, N. N. Khuri andS. B. Treiman:Ann. Phys.,10, 62 (1960);A. Klein:Journ. Math. Phys.,1, 41 (1960).

    Article  MathSciNet  ADS  MATH  Google Scholar 

  3. For a complete reference on this subject, see alsoA. Martin:Lectures at the summer school of Hercegnovi (Jugoslavia, 1961) and CERN’s preprint 1775 TH/195.

  4. G. F. Chew:Lecture notes at Les Houches summer school (1960) published in:Relations de dispersion et particules élé mentaires (Paris, 1961).

  5. G. F. Chew andS. C. Frautschi:Phys. Rev. Lett.,7, 394 (1962).

    Article  ADS  Google Scholar 

  6. L. J. Schiff:Meccanica Quantistica (Torino, 1952), p. 250.

  7. V. Bargmann:Rev. Mod. Phys.,21, 488 (1949).

    Article  MathSciNet  ADS  MATH  Google Scholar 

  8. G. F. Chew, S. C. Frautschi andS. Mandelstam:Regge poles in π- π scattering, preprint U.C.R.L. 9925.

  9. J. M. Charap andS. Pubini:Nuovo Cimento,14, 540 (1959);15, 73 (1960).

    Article  MATH  Google Scholar 

  10. For the detailed application of the method, see for instanceA. Bottino, A. M. Longoni andT. Regge (1).

  11. T. Regge:Nuovo Cimento,18, 947 (1960).

    Article  MathSciNet  Google Scholar 

  12. A. Erdely, W. Magnus, F. Oberhettinger andF. G. Tricomi:The Bateman Manuscript Project — Higher Trascendental Functions, vol. I (New York, 1953), p: 252.

  13. A. Erdely, W. Magnus, F. Oberhettinger andF. G. Tricomi:The Bateman Manuscript Protect — Higher Trascendental Functions, vol. I (New York, 1953), p. 257.

  14. A. Erdely, W. Magnus, F. Oberhettinger andP. G. Tricomi:The Bateman Manuscript Project — Higher Trascendental Functions, vol. I (New York, 1953), p. 257.

  15. A. Erdely, W. Magnus, F. Oberhettinger andF. G. Tricomi:The Bateman Manuscript Project — Higher Trascendental Functions, vol. I (New York, 1953), p. 267.

  16. F. G. Tricomi:Funzioni Ipergeometriche Confluenti (Torino, 1952), p. 118.

  17. F. G. Tricomi:Funzioni Ipergeometriche Confluenti (Torino, 1952), p. 75.

  18. W. Magnus undF. Oberhettinger:Formeln und Sätze für die speziellen Funktionen der mathematischen Physik (Berlin, 1948), p. 5.

  19. A. Erdely, W. Magnus, F. Oberhettinger andF. G. Tricomi:The Bateman Manuscript Project — Higher Trascendental Functions, vol. II (New York, 1954), p. 268.

  20. A. Erdely, W. Magnus, F. Oberhettinger andF. G. Tricomi:The Bateman Manuscript Project — Higher Trascendental Functions, vol. II (New York, 1954), p. 133.

  21. A. Erdely, W. Magnus, F. Oberhettinger andF. G. Tricomi:The Bateman Manuscript Project — Higher Trascendental Functions, vol. II (New York, 1954), p. 135.

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Predazzi, E., Regge, T. The maximum analyticity principle in the angular momentum. Nuovo Cim 24, 518–533 (1962). https://doi.org/10.1007/BF02751361

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02751361

Navigation