Summary
The forward photoproduction of π±Δ is studied in a Coulomb-coupling approximation. It is shown that the prescription suggested by Dombey for the choice of the Coulomb coupling fails to work in these reactions. A way in which these difficulties may be overcome is suggested and this model succeeds in explaining many features of these reactions rather well.
Riassunto
Si studia la fotoproduzione in avanti nell’approssimazione dell’accoppiamento coulombiano. Si dimostra che la prescrizione suggerita da Dombey per la scelta dell’accoppiamento coulombiano non è valida in queste reazioni. Si indica come superare queste difficoltà e questo modello riesce a spiegare abbastanza bene diverse caratteristiche di queste reazioni.
Реэюме
Исследуется фоторождение в направлении вперед для π±Δ в приближении кулоновской свяэи. Покаэывается, что рецепт, предложенный Домбеем для выбора кулоновской свяэи не работает в зтих реакциях. Предлагается путь, который поэволяет преодолеть зти трудности. Эта модель довольно хорощо общясняет многие особенности зтих реакций.
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References
J. S. Bell, W. R. Frazer andM. Jacob:Phys. Rev. Lett.,20, 518 (1968);F. Cooper:Phys. Rev. Lett.,20, 643 (1968);K. Dietz andW. Korth:Phys. Lett.,26 B, 394 (1968);A. Bietti, P. Di Vecchia, F. Drago andM. L. Paciello:Phys. Lett.,26 B, 457 (1968);J. Froyland andD. Gordon:Phys. Rev.,177, 2500 (1969);I. Bender, H. G. Dosch andH. J. Rothe:Nuovo Cimento,62 A, 1026 (1969).
A. M. Boyarski, F. Bulos, W. Busza, R. Diebold, S. D. Ecklund, G. E. Fischer, J. Rees andB. Richter:Phys. Rev. Lett.,20, 300 (1968);A. M. Boyarski, R. Diebold, S. D. Ecklund, G. E. Fischer, Y. Murata, B. Richter andW. S. C. Williams:Phys. Rev. Lett.,21, 767 (1968).
N. Dombey:Phys. Lett.,30 B, 646 (1969).
I. Barbour andR. G. Moorhouse:Nucl. Phys.,20 B, 629 (1970).
A. M. Boyarski, R. Diebold, S. D. Ecklund, G. E. Fischer, Y. Murata, B. Richter andM. Sands:Proceedings of the IV International Symposium on Electron and Photon Interactions at High Energies, Liverpool, 1969 (Daresbury Nuclear Physics Laboratory);A. M. Boyarski, R. Diebold, S. D. Ecklund, G. E. Fischer, Y. Murata, B. Richter andW. S. C. Williams:Phys. Rev. Lett.,22, 148 (1969).
I. Bender, H. G. Dosch andH. J. Rothe:Nuovo Cimento,63 A, 162 (1969).
M. Gourdin:Nuovo Cimento,36, 129 (1965);M. Gourdin andJ. Micheli:Nuovo Cimento,40 A, 225 (1965).
D. H. Schiller andI. Raszillier:Zeits. Phys.,222, 425 (1969).
J. Engels, G. Schwiderski andW. Schmidt:Phys. Rev.,166, 1443 (1968);F. A. Berends:Forward charged pion electroproduction from fixed momentum transfer dispersion relation, Harvard University preprint.
P. Stichel andM. Scholz:Nuovo Cimento,34, 1381 (1965).
J. A. Campbell, R. B. Clark andD. Horn: California Institute of Technology preprint: CALT-68-245.
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Miaii, M.A.W. Coulomb couplings and born-term analysis for\(\gamma \mathcal{N} \to \pi ^ \pm \Delta \) reactionsreactions. Nuov Cim A 2, 197–208 (1971). https://doi.org/10.1007/BF02723996
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DOI: https://doi.org/10.1007/BF02723996