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Some curious effects of pair annihilations in the bag-model treatment of the\(Q^2 \bar Q^2 \) system

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Zeitschrift für Physik C Particles and Fields

Abstract

With the inclusion of a single gluon magnetic exchange term, the M.I.T. static spherical cavity spectrum of\(q^2 \bar q^2 \) bag eigenstates contains a pair of nearly degenerateJ P=0+ states in both theI=0 and 1 channels; possibly associated with theS *(980) and δ(980). The effect of pair annihilation-induced mixing on these states is investigated and is shown to result in radical changes. For small mixing the bag energy curves have two minima. As the mixing strength is increased, one of these minima disappears and is replaced by a new higher lying state.

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Authors and Affiliations

  1. School of Physics, University of Melbourne, 3052, Parkville, Victoria, Australia

    R. P. Bickerstaff & B. H. J. McKellar

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  1. R. P. Bickerstaff
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  2. B. H. J. McKellar
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Bickerstaff, R.P., McKellar, B.H.J. Some curious effects of pair annihilations in the bag-model treatment of the\(Q^2 \bar Q^2 \) system. Z. Phys. C - Particles and Fields 16, 171–179 (1982). https://doi.org/10.1007/BF01572268

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