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A new application of the Gürsey and Radicati mass formula

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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 hyper-Coulomb term. We show that the nonstrange- 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.

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Authors and Affiliations

  1. Dipartimento di Fisica, Università degli Studi di Genova, Genova, Italy

    M. M. Giannini, E. Santopinto & A. Vassallo

  2. Sezione di Genova, INFN, Genova, Italy

    M. M. Giannini, E. Santopinto & A. Vassallo

Authors
  1. M. M. Giannini
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  2. E. Santopinto
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  3. A. Vassallo
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Correspondence to M. M. Giannini.

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Giannini, M.M., Santopinto, E. & Vassallo, A. A new application of the Gürsey and Radicati mass formula. Eur. Phys. J. A 25, 241–247 (2005). https://doi.org/10.1140/epja/i2005-10113-4

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  • DOI: https://doi.org/10.1140/epja/i2005-10113-4

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