Multibaryons as symmetric multi-Skyrmions

Juan P. Garrahan, Martín Schvellinger, and Norberto N. Scoccola
Phys. Rev. D 61, 014001 – Published 18 November 1999
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Abstract

We study the rotational corrections to multibaryon systems within the bound state approach to the SU(3) Skyrme model. We use approximate Ansätze for the static background fields based on rational maps which have the same symmetries of the exact solutions. To determine the explicit form of the collective Hamiltonians and wave functions we only make use of these symmetries. Thus, the expressions obtained are also valid in the exact case. On the other hand, the inertia parameters and hyperfine splitting constants we calculate do depend on the detailed form of the Ansätze and are, therefore, approximate. Using these values we compute the low lying spectra of multibaryons with B<~9 and strangeness 0, 1, and B. Finally, we show that the rotational corrections do not affect the stability of the tetralambda and heptalambda found in a previous work.

  • Received 21 June 1999

DOI:https://doi.org/10.1103/PhysRevD.61.014001

©1999 American Physical Society

Authors & Affiliations

Juan P. Garrahan*

  • Theoretical Physics, University of Oxford, 1 Keble Road, Oxford, OX1 3NP, United Kingdom

Martín Schvellinger

  • Physics Department, University of La Plata, C.C. 67, (1900) La Plata, Argentina

Norberto N. Scoccola

  • Physics Department, Comisión Nacional de Energía Atómica, Av. Libertador 8250, (1429) Buenos Aires, Argentina
  • Universidad Favaloro, Solís 453, (1078) Buenos Aires, Argentina

  • *Email address: j.garrahan1@physics.ox.ac.uk
  • Email address: martin@venus.fisica.unlp.edu.ar
  • Email address: scoccola@tandar.cnea.gov.ar

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Issue

Vol. 61, Iss. 1 — 1 January 2000

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