Corrections to the Gell-Mann-Okubo formula due to second-order SU(4) breaking

Richard Simard; Mahiko Suzuki

doi:10.1103/PhysRevD.12.2002

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Corrections to the Gell-Mann-Okubo formula due to second-order SU(4) breaking

Richard Simard^* and Mahiko Suzuki^†

Lawrence Berkeley Laboratory and Department of Physics, University of California, Berkeley, California 94720

^*Work supported by U. S. Energy Research and Development Administration.
^†Work supported by National Science Foundation under Grant No. CP-42249X.

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Phys. Rev. D 12, 2002 – Published 1 October, 1975

DOI: https://doi.org/10.1103/PhysRevD.12.2002

Abstract

It is shown by a current-algebra technique that second-order SU(4)-breaking effects shift the charmed-vector-meson masses upwards from the values predicted by the quadratic Gell-Mann-Okubo formula. The magnitude of the shift is estimated in a simple quark model of meson coupling constants.

References (7)

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[c1] J. J. Aubert et al., Phys. Rev. Lett. 33, 1404 (1974)

[c2] J.-E. Augustin et al., Phys. Rev. Lett. 33, 1406 (1974)

[c3] C. Bacci et al., Phys. Rev. Lett. 33, 1408 (1974)

[c4] J.-E. Augustin et al., Phys. Rev. Lett. 34, 764 (1975)

[c5] M. Ademollo and R. Gatto, Phys. Rev. Lett. 13, 264 (1964)

[c6] Particle Data Group, Phys. Lett. B 50B, 1 (1974)

[c7] R. H. Dalitz, in High Energy Physics, 1965 Les Houches Lectures, edited by C. M. DeWitt and M. Jacob (Gordon and Breach, New York, 1966), p. 251 G. Morpurgo, in Theory and Phenomenology in Particle Physics, Erice, Italy, 1968, proceedings of the 1968 International Summer School "Ettore Majorana," edited by A. Zichichi (Academic, New York, 1969), p. 84

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Corrections to the Gell-Mann-Okubo formula due to second-order SU(4) breaking

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References (7)

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