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Baryon masses in relativistic potential models

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Zeitschrift für Physik C Particles and Fields

Abstract

We study the spectrum of a semi relativistic three-body hamiltonian. The hyperspherical method proves to be very efficient. We show that the ground states of baryons can be calculated with good accuracy. However, when using the meson potential, together with the colour assumption\(Vqq = \tfrac{1}{2}Vq\bar q\), baryon Regge slopes come out noticeably too small. We analyze this problem and show that a quarkdiquark structure for baryons cures this defect. Altogether the construction of a global unified potential model for mesons and baryons seems quite hopeful.

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Authors and Affiliations

  1. Division de Physique Théorique, Institut de Physique Nucléaire, F-91406, Orsay, France

    J. -L. Basdevant

  2. LPTPE, Université P. et M. Curie, T16 E1, F-75230, Paris Cedex 05, France

    J. -L. Basdevant

  3. Laboratoire de Physique Théorique et Hautes Energies, LPTHE, Université P. et M. Curie, T16 E1, F-75230, Paris Cedex 05, France

    S. Boukraa

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  1. J. -L. Basdevant
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  2. S. Boukraa
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Basdevant, J.L., Boukraa, S. Baryon masses in relativistic potential models. Z. Phys. C - Particles and Fields 30, 103–114 (1986). https://doi.org/10.1007/BF01560683

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  • DOI: https://doi.org/10.1007/BF01560683

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