Physics Letters B (Jun 2018)

A simple mass-splitting mechanism in the Skyrme model

  • J.M. Speight

Journal volume & issue
Vol. 781
pp. 455 – 458

Abstract

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It is shown that the addition of a single chiral symmetry breaking term to the standard ω-meson variant of the nuclear Skyrme model can reproduce the proton–neutron mass difference. Keywords: Topological solitons, Skyrmions, Isospin symmetry breaking