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Baryon octet and decuplet phenomenology in a three-flavor extended linear sigma model

P. Kovács*, Á. Lukács†, J. Váróczy‡, Gy. Wolf§, and M. Zétényi∥

  • Institute for Particle and Nuclear Physics, Wigner Research Center for Physics, Hungarian Academy of Sciences, H-1525 Budapest, Hungary

  • *kovacs.peter@wigner.mta.hu
  • †lukacs.arpad@wigner.mta.hu
  • ‡jannoczy@gmail.com
  • §wolf.gyorgy@wigner.mta.hu
  • ∥zetenyi.miklos@wigner.mta.hu
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Phys. Rev. D 89, 054004 – Published 5 March, 2014

DOI: https://doi.org/10.1103/PhysRevD.89.054004

Abstract

We present an effective model, which is an extension of the usual linear sigma model, that contains a low energy multiplet for every hadronic particle type. These multiplets are a scalar nonet, a pseudoscalar nonet, a vector nonet, an axial-vector nonet, a baryon octet and a baryon decuplet. Tree-level baryon masses and possible two-body decuplet decays are calculated. The baryon masses are generated through spontaneous symmetry breaking. The calculated quantities are used to determine the model parameters through a multiparametric minimalization process, which compares the calculated physical quantities with their experimental values. We found that the calculated quantities are in good agreement with the experimental data.

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Phys. Rev. D 89, 054004– Published 5 March, 2014
  • Received 23 November 2013

© 2014 American Physical Society

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