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The charge density and neutron skin thickness of Skyrmions
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Motivated by recent parity violating electron scattering experiments, we compute the Neutron Skin Thickness (NST) of nuclei modelled as (quantized) Skyrmions, the topological solitons of the Skyrme model. We show how in a certain approximation, the result for the NST is oblivious to the fine details of the (generally very complicated) quantum state of the soliton and only depends on the total baryon number and the isospin number. Moreover, in the leading order, the linear dependence on the asymmetry parameter is recovered, as expected both from experimental data and other models of nuclei such as the liquid drop model.
Forward citations
Cited by 2 Pith papers
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Mass radius and D-term of atomic nuclei in relativistic mean field theory
D-term of nuclei exhibits kinks at magic neutron numbers, showing strong sensitivity of mechanical properties to shell structure.
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Electroweak form factors of large nuclei as BPS skyrmions
With one fitted radial parameter, the BPS Skyrme model reproduces electromagnetic and weak form factors of heavy nuclei up to about 150 MeV, including PREX and CREX data.
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