Absence of attraction in the NN central potential derived from skyrmions

G. Kälbermann*, J. M. Eisenberg, Richard R. Silbar, Morton M. Sternheim

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

The nucleon-nucleon potential is studied using a skyrmion lagrangian containing terms of second, fourth, and sixth order in the field derivatives; the fourth-order pieces contain both an antisymmetric (repulsive) form and a symmetric (attractive) one. No attraction is found in the central NN potential VC when the full structure of the sixth-order term is retained. As yet another candidate for the source of attraction in VC, admixtures of ΔΔ components in the two-baryon wave function are considered. These slightly lower the values of VC for 1 ≤ R ≤ 2 fm, but by no means sufficiently to bring about a net attraction there. Thus the challenge of finding sources of attraction in the skyrmion approach remains.

Original languageEnglish
Pages (from-to)4-8
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume179
Issue number1-2
DOIs
StatePublished - 16 Oct 1986

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