Phys. Rev. Lett. 65, 2955–2958 (1990)Two-component approach to the ‘‘proton spin’’ puzzle in generalized Skyrme modelsReceived 30 August 1990; published in the issue dated 10 December 1990 We demonstrate that a cancellation mechanism between quark and gluon contributions to the axial-vector singlet form factor is operative in a generalized Skyrme model, The calculation of the non-electromagnetic part of the neutron-proton mass difference plays a crucial role in this analysis. © 1990 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.65.2955
DOI:
10.1103/PhysRevLett.65.2955
PACS:
13.88.+e, 11.10.Lm, 11.40.Fy, 12.40.Aa
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