The stability of a chiral soliton in the fermion one-loop approximation

  • Ripka G
  • Kahana S
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The energy of Dirac sea quarks coupled to a SU(2) chiral field, commonly referred to as the Casimir energy, is calculated for a hedgehog shape. The soliton is shown to remain stable with respect to collapse when this energy is included. Derivative expansions are found to be inadequate for discussing stability. © 1985.

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  • G. Ripka

  • S. Kahana

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