Electromagnetic Transition Strengths for Light Nuclei in the Skyrme model

Abstract

We calculate reduced $B(E2)$ electromagnetic transition strengths for light nuclei of mass numbers $B=8,12,16,20,24$ and $32$ within the Skyrme model. We find that the predicted transition strengths are of the correct order of magnitude and the computed intrinsic quadrupole moments match the experimentally observed effective nuclear shapes. For the Hoyle state we predict a large $B(E2)\uparrow$ value of $0.0521{\mathrm{e}}^2{\mathrm{b}}^2$. For Oxygen-16, we can obtain a quantitative understanding of the ground state rotational band and the rotational excitations of the second spin-0 state, $0_2^{+}$.

23 pages, 2 figures; updated to match published version in Phys. Rev. C

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• Gauged BPS baby Skyrmions with quantised magnetic flux
• On the spin excitation energy of the nucleon in the Skyrme model
• Electromagnetic transition rates of Carbon-12 and Oxygen-16 in rotational-vibrational models
• Restricted baby Skyrme-Maxwell theory in a magnetic medium: BPS configurations and some properties