Strong-interaction Isospin-symmetry Breaking Within the Density Functional Theory
Baczyk, P., Dobaczewski, J., Konieczka, M., & Satula, W. (2015). Strong-interaction Isospin-symmetry Breaking Within the Density Functional Theory. In XXII Nuclear Physic Workshop “Marie & Pierre Curie” Essential Problems in Nuclear Physics (pp. 539-544). Jagiellonian University. Acta Physica Polonica B, Proceedings Supplement, 8. https://doi.org/10.5506/APhysPolBSupp.8.539
Published inActa Physica Polonica B, Proceedings Supplement
© the Authors, 2016. This is an open access article distributed under a Creative Commons Attribution 3.0 License. Funded by SCOAP3.
The conventional Skyrme interaction is generalized by adding zerorange charge-symmetry-breaking and charge-independence-breaking terms, and the corresponding energy density functional is derived. It is shown that the extended model accounts for experimental values of mirror and triplet displacement energies (MDEs and TDEs) in sd-shell isospin triplets with, on average, ∼ 100 keV precision using only two additional adjustable coupling constants. Moreover, the model is able to reproduce, for the first time, the A = 4n versus A = 4n + 2 staggering of the TDEs.