SU(3) Mass Splittings for $\bar{q}q$ Mesons and $qqq$ Baryons

M. D. Scadron; G. Rupp; E. van Beveren; F. Kleefeld

doi:10.1063/1.1632205

SU(3) Mass Splittings for $\bar{q}q$ Mesons and $qqq$ Baryons

High Energy Physics - Phenomenology 2008-11-26 v1

Authors: M. D. Scadron , G. Rupp , E. van Beveren , F. Kleefeld

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Abstract

By comparing SU(3)-breaking scales of linear mass formulae, it is shown that the lowest vector, axial-vector, and scalar mesons all have a $\bar{q}q$ configuration, while the ground-state octet and decuplet baryons are $qqq$ . Also, the quark-level linear $\sigma$ model is employed to predict similar $\bar{q}q$ and $qqq$ states. Finally, the approximate mass degeneracy of the scalar $a_0$ (980) and $f_0$ (980) mesons is demonstrated to be accidental.

Keywords

SU(3) mass splittings q bar q mesons qqq baryons linear mass formulae linear sigma model mass degeneracy

Cite

@article{arxiv.hep-ph/0307003,
  title  = {SU(3) Mass Splittings for $\bar{q}q$ Mesons and $qqq$ Baryons},
  author = {M. D. Scadron and G. Rupp and E. van Beveren and F. Kleefeld},
  journal= {arXiv preprint arXiv:hep-ph/0307003},
  year   = {2008}
}

Comments

8 Pages, AIP Proc. Style; Contribution to the High-Energy Physics Workshop "Scalar Mesons: an Interesting Puzzle for QCD", May 16-18, 2003, SUNY Institute of Technology, Utica (NY)

SU(3) Mass Splittings for $\bar{q}q$ Mesons and $qqq$ Baryons

Abstract

Keywords

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