Summary
Starting form the Mandelstam representation in potential scattering, explicit examples are given for which the Regge functionR(s, λ) is known exactly. In particular, a symmetry property ofR(s, λ) at integral λ is derived. The nature of « kinematical » and « dynamical » Regge poles is discussed in some detail. Finally, the potentials responsible for the various cases are written down in Born approximation.
Riassunto
Partendo dalla rappresentazioue di Mandelstam nello scattering di Potenziale, si danno esempi espliciti in oui è esattamente nota la funzione di Regge R(s, λ). In particolare si deduce una proprietà di simmetria diR(s, λ) per λ intero. Si discute con qualche dettaglio la natura dei poli di Regge « cinematici » e « dinamici ». In fine si scrivono nell’approssimazione di Born i potenziali che generano i vari casi.
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References
T. Regge:Nuovo Cimento,14, 951 (1959) and following papers;M. Froissart:Potential scattering for complex energy and angular momentum (Princeton preprint).
G. F. Chew, S. C. Frautschi andS. Mandelstam: UCRL preprint 9925.
R. Blankenbecler, M. L. Goldberger, N. N. Khuri andS. Treiman:Ann. of Phys.,10, 62 (1960);A. Klein:Journ. Math. Phys.,1, 41 (1960).
E. C. Titchmarsh:Theory of Functions, 2-nd edition (London, 1952), p. 185.
See, for instance,R. Omnès:Some remarks about unitarity (preprint).
See, for instance,K. Bardakci:Complex angular momentum in field theory (University of Minnesota preprint);A. O. Barut andD. Zwanziger: UCRL preprint;S. Okubo:Some remarks about analyticity and unitarity in field theory, I and II (University of Rochester preprint).
Bateman Manuscript Project:Higher Transcendental Functions, vol.1.
S. Mandelstam:An extension of Regge’s formula (University of Birmingham preprint).
V. Singh: UCRL preprint 9972.
E. J. Squires: UCRL preprint.
Bateman Manuscript Project:Integral Transforms, vol.1.
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This work is supported by funds provided by the U.S. Atomic Energy Commission and the ARPA.
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Acharya, R., Bhattacharjie, A. Exactly solvable cases of Regge poles from mandelstam representation. Nuovo Cim 26, 369–378 (1962). https://doi.org/10.1007/BF02787047
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DOI: https://doi.org/10.1007/BF02787047