Hyperon radiative decay

E. Kaxiras; E. J. Moniz; M. Soyeur

doi:10.1103/PhysRevD.32.695

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Hyperon radiative decay

E. Kaxiras and E. J. Moniz

M. Soyeur

Center for Theoretical Physics, Department of Physics and Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Centre d’Etudes Nucleaires de Saclay, Service de Physique Theorique, F-91191 Gif-sur-Yvette Cedex, France

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Phys. Rev. D 32, 695 – Published 1 August, 1985

DOI: https://doi.org/10.1103/PhysRevD.32.695

Abstract

The radiative decay widths of the low-lying strange baryons are calculated both within the relativistic quark bag model and the nonrelativistic potential model. These widths are found to depend sensitively upon the quark-model dynamics through multiplet mixing and $q^{4}$ q¯ admixtures. The comparison between our calculated results and the very limited experimental data is discussed.

References (20)

A preliminary version of some of these results was presented in E. J. Moniz and M. Soyeur, in Proceedings of the Kaon Factory Workshop, Vancouver, 1979, edited by M. K. Craddock (TRIUMF Report No. TRI-79-1), p. 67.
N. Isgur and G. Karl, Phys. Rev D 18, 4187 (1978); ibid. 19, 2653 (1979).
R. Koniuk and N. Isgur, Phys. Rev. D 21, 1868 (1980).
J. W. Darewych, M. Horbatsch and R. Koniuk, Phys. Rev. D 28, 1125 (1983).
A. Chodos, R. L. Jaffe, K. Johnson, C. B. Thorn and V. F. Weisskopf, Phys. Rev. D 9, 3471 (1974); A. Chodos, R. L. Jaffe, K. Johnson and C. B. Thorn, ibid. 10, 2599 (1974); T. DeGrand, R. L. Jaffe, K. Johnson and J. Kiskis, ibid. 12, 2060 (1975).
T. A. DeGrand, Ann. Phys. (N.Y.) 101, 496 (1976).
D. B. Lichtenberg, Unitary Symmetry and Elementary Particles (Academic, New York, 1978).
C. Rebbi, Phys. Rev. D 12, 2407 (1975); ibid. 14, 2362 (1976).
T. A. DeGrand and R. L. Jaffe, Ann. Phys. (N.Y.) 100, 425 (1976).
D. Strottman, Phys. Rev. D 20, 748 (1979).
R. P. Bickerstaff, University of Melbourne Report No. UM-P-82/22 (unpublished); Phys. Rev. D 25, 279 (1981).
P. J. Mulders, contribution to Workshop on Nuclear and Particle Physics at Energies up to 31 GeV, Los Alamos, 1981 (unpublished).
R. L. Jaffe and F. E. Low, Phys. Rev. D 19, 2105 (1979).
F. Dydak et al., Nucl. Phys. B118, 1 (1977).
J. Colas et al., Nucl. Phys. B91, 253 (1975).
T. S. Mast et al., Phys. Rev. Lett. 21, 1715 (1968).
R. Bertini et al.., contribution to the International Conference on Particles and Nuclei, Heidelberg, 1984 (unpublished).
F. A. Berends and D. L. Weaver, Nucl. Phys. B30, 575 (1971).
K. Chao, N. Isgur and G. Karl, Phys. Rev. D 23, 155 (1981).
M. V. Hynes (private communication).

[c1] A preliminary version of some of these results was presented in E. J. Moniz and M. Soyeur, in Proceedings of the Kaon Factory Workshop, Vancouver, 1979, edited by M. K. Craddock (TRIUMF Report No. TRI-79-1), p. 67.

[c2] N. Isgur and G. Karl, Phys. Rev D 18, 4187 (1978); ibid. 19, 2653 (1979).

[c3] R. Koniuk and N. Isgur, Phys. Rev. D 21, 1868 (1980).

[c4] J. W. Darewych, M. Horbatsch and R. Koniuk, Phys. Rev. D 28, 1125 (1983).

[c5] A. Chodos, R. L. Jaffe, K. Johnson, C. B. Thorn and V. F. Weisskopf, Phys. Rev. D 9, 3471 (1974); A. Chodos, R. L. Jaffe, K. Johnson and C. B. Thorn, ibid. 10, 2599 (1974); T. DeGrand, R. L. Jaffe, K. Johnson and J. Kiskis, ibid. 12, 2060 (1975).

[c6] T. A. DeGrand, Ann. Phys. (N.Y.) 101, 496 (1976).

[c7] D. B. Lichtenberg, Unitary Symmetry and Elementary Particles (Academic, New York, 1978).

[c8] C. Rebbi, Phys. Rev. D 12, 2407 (1975); ibid. 14, 2362 (1976).

[c9] T. A. DeGrand and R. L. Jaffe, Ann. Phys. (N.Y.) 100, 425 (1976).

[c10] D. Strottman, Phys. Rev. D 20, 748 (1979).

[c11] R. P. Bickerstaff, University of Melbourne Report No. UM-P-82/22 (unpublished); Phys. Rev. D 25, 279 (1981).

[c12] P. J. Mulders, contribution to Workshop on Nuclear and Particle Physics at Energies up to 31 GeV, Los Alamos, 1981 (unpublished).

[c13] R. L. Jaffe and F. E. Low, Phys. Rev. D 19, 2105 (1979).

[c14] F. Dydak et al., Nucl. Phys. B118, 1 (1977).

[c15] J. Colas et al., Nucl. Phys. B91, 253 (1975).

[c16] T. S. Mast et al., Phys. Rev. Lett. 21, 1715 (1968).

[c17] R. Bertini et al.., contribution to the International Conference on Particles and Nuclei, Heidelberg, 1984 (unpublished).

[c18] F. A. Berends and D. L. Weaver, Nucl. Phys. B30, 575 (1971).

[c19] K. Chao, N. Isgur and G. Karl, Phys. Rev. D 23, 155 (1981).

[c20] M. V. Hynes (private communication).

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Hyperon radiative decay

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References (20)

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