Quick Search:
Author: Title/Abstract: Vol./No: Page:

Prog. Theor. Phys. Vol. 50 No. 2 (1973) pp. 589-609

[ Full Text PDF : FREE ACCESS (1531K) ]

Electromagnetic Properties of Hadrons in a Two-Body Composite Baryon Model

Seiji Ono

Department of Physics, University of Tokyo, Tokyo

(Received January 24, 1973)

Abstract:

The radiative widths of hadrons and the resonance contributions to the π0 photoproduction cross sections are calculated using the two-body composite model of baryons proposed by the present author. Reasonable results are obtained and they are compared with those obtained from the quark model. The main results are the following: (1) The E2 amplitude of the Δ+(1236) →pγ process vanishes as in the quark model. (2) Moorhous' selection rule cannot be obtained. (3) The smallness of helicity 1/2 amplitudes of the π0 photoproduction processes through the second and third resonances can be explained.


URL : http://ptp.ipap.jp/link?PTP/50/589/
DOI : 10.1143/PTP.50.589

[ Full Text PDF : FREE ACCESS (1531K) ] Citation:

See Also:


References:

  1. S. Ono, Prog. Theor. Phys. 48 (1972), 964[PTP].
  2. S. Ono, Prog. Theor. Phys. 49 (1973), 573[PTP].
  3. M. Ida and R. Kobayashi, Prog. Theor. Phys. 36 (1966), 846[PTP].
  4. D. B. Lichtenberg and L. J. Tassie, Phys. Rev. 155 (1967), 1601[APS].
  5. D. B. Lichtenberg, Nuovo Cim. A 49 (1967), 435.
  6. P. D. De Souza and D. B. Lichtenberg, Phys. Rev. 161 (1967), 1513[APS].
  7. D. B. Lichtenberg, L. J. Tassie and P. C. Keleman, Phys. Rev. 167 (1968), 1535[APS].
  8. J. Carroll, D. B. Lichtenberg and J. Franklin, Phys. Rev. 174 (1968), 1681[APS].
  9. D. B. Lichtenberg, Phys. Rev. 178 (1969), 2197[APS].
  10. H. Miyazawa, Phys. Rev. 170 (1968), 1586[APS].
  11. W. Thirring, Acta Phys. Austr. Suppl. II (1966), 205.
  12. G. Morpurgo, Physics 2 (1965), 95.
  13. Particle Data Group, Phys. Lett. B 39 (1972), i[CrossRef].
  14. R. L. Cool et al., Phys. Rev. Lett. 29 (1972), 1630[APS].
  15. C. Becchi and G. Morpurgo, Suppl. Nuovo Cim. 4 (1966), 548.
  16. H. Pietschmann and W. Thirring, Phys. Lett. 21 (1966), 713[CrossRef].
  17. V. V. Anisovich, A. A. Anselm, Ya. I. Azimov, G. S. Danilov and I. T. Dyatlov, Phys. Lett. 16 (1965), 194[CrossRef].
  18. C. Becchi and G. Morpurgo, Phys. Rev. 140 (1965), B 687[APS].
  19. R. H. Dalitz, in High Energy Physics (Gordon and Breach, Science Publishers, Inc., N. Y., 1965), p. 251.
  20. R. Van Royen and V. F. Weisskopf, Nuovo Cim. A 50 (1967), 617; ibid. 51 (1967), 583.
  21. G. Morpurgo, in Theory and Phenomenology in Particle Physics, Part A (Academic Press, New York, 1969), p. 84.
  22. J. J. J. Kokkedee, The Quark Model (W. A. Benjamin, New York, 1969).
  23. C. Becchi and G. Morpurgo, Phys. Lett. 17 (1965), 352[CrossRef].
  24. D. Faiman and A. W. Hendry, Phys. Rev. 180 (1969), 1572[APS].
  25. K. Fujimura, T. Kobayashi and M. Namiki, Prog. Theor. Phys. 37 (1967), 916[PTP]; ibid. 38 (1967), 210[PTP].
  26. C. W. Akerlof et al., Phys. Rev. 163 (1967), 1482[APS].
  27. K. Fujimura, T. Kobayashi and M. Namiki, Prog. Theor. Phys. 43 (1970), 73[PTP]; ibid. 44 (1970), 193[PTP].
  28. D. J. Drickey and R. F. Mozley, Phys. Rev. Lett. 8 (1962), 1961[APS].
    G. Diambrini et al., Proc. Dubna (1964).
  29. R. G. Moorhouse, Phys. Rev. Lett. 16 (1966), 772[APS].
  30. H. J. Lipkin, Phys. Lett. 12 (1964), 154[CrossRef].
  31. L. A. Copley, G. Karl and E. Obryk, Nucl. Phys. B 13 (1969), 303[CrossRef]; Phys. Lett. B 29 (1969), 117[CrossRef].
  32. J. Kupsch, Phys. Lett. 22 (1966), 690[CrossRef].
  33. R. H. Dalitz and D. G. Sutherland, Phys. Rev. 146 (1966), 1180[APS].
  34. R. H. Rubinstein, R. Socolow and F. Scheck, Phys. Rev. 154 (1967), 1608[APS].
  35. R. L. Walker, Report to the Liverpool Symposium on Electron and Photon Interactions at High Energies (Daresburg, 1969).
  36. K. Fujimura, T. Kobayashi and M. Namiki, Prog. Theor. Phys. 37 (1967), 916[PTP]; ibid. 38 (1967), 210[PTP].
  37. R. L. Walker, Phys. Rev. 182 (1969), 1729[APS].

Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 55 No. 3 (1976) pp. 777-791 :
    N*Nγ and Quark Model
    Yasuo Matsuda