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A New Application of the Gursey and Radicati Mass Formula

M. M. Giannini E. Santopinto·A. Vassallo
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Abstract

We study the spin- and flavour- dependent SU(6) violations in the baryon spectrum by means of a Gürsey Radicati mass formula. The average energy of each SU(6)-multiplet is described using the SU(6) invariant interaction given by a hypercentral potential containing a linear and a hypercoulomb term. We show that the non strange and strange baryon masses are in general fairly well reproduced and moreover that the Gürsey Radicati formula holds in a satisfactory way also for the excited states up to 2 GeV. The coefficients of the Gürsey Radicati SU(6) breaking part obtained by the fit of the three-quark spectrum can be used to evaluate in first approximation the splitting within multiplets also for exotic baryon systems.

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M. M. Giannini E. Santopinto, A. Vassallo. 2005-06-09. A New Application of the Gursey and Radicati Mass Formula. https://doi.org/10.1140/epja%2Fi2005-10113-4

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