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Quark-meson SU(3) model in a Tamm-Dancoff inspired approximation

  • theoretical physics
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Abstract.

The non-linear chiral quark-meson U(3) x U(3) model is solved using the Tamm-Dancoff inspired approximation which is described in an earlier paper [Phys. Rev. D 58, 034003 (1998)]. The resulting system of 15 coupled non-linear differential equations self-consistently determines all quark-meson coupling constants. Also the obtained solutions for quark and meson fields are stable and physically acceptable. As the zeroth approximation of a more refined structure they were used to calculate SU(3) baryon octet magnetic moments and axial coupling constants with baryon state vectors containing valence quarks only, at this primordial level. The results are very promising, so possibilities to pursuit more sophistication and improved physical input is indicated.

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Authors and Affiliations

  1. Physics Department, Faculty of Electrical Engineering, University of Zagreb, Unska 3, 10000, Zagreb, Croatia

    D. Horvat

  2. Physics Department, University of Zagreb, Bijenička c. 32, 10000, Zagreb, Croatia

    D. Horvatić & D. Tadić

Authors
  1. D. Horvat
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  2. D. Horvatić
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  3. D. Tadić
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Correspondence to D. Horvat.

Additional information

Received: 24 August 2004, Published online: 1 December 2004

PACS:

12.39.Ba, 12.39.Fe

D. Horvat: dubravko.horvat@fer.hr, Correspondence to: davorh@phy.hr

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Horvat, D., Horvatić, D. & Tadić, D. Quark-meson SU(3) model in a Tamm-Dancoff inspired approximation. Eur. Phys. J. C 38, 483–494 (2005). https://doi.org/10.1140/epjc/s2004-02062-5

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