Deformation-induced splitting of the monopole giant resonance in 24Mg
1 Institute of Particle and Nuclear Physics, Charles University, CZ-18000, Praha 8, Czech Republic
2 Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research,, Dubna, Moscow region, 141980 Russia
3 Institut für Theoretische Physik II, Universität Erlangen, D-91058, Erlangen, Germany
4 Technische Universität Dresden, Institut für Analysis, D-01062, Dresden, Germany
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Published online: 19 January 2016
The strong deformation splitting of the isoscalar giant monopole resonance (ISGMR), recently observed in (α, α′) reaction in prolate 24Mg, is analyzed in the framework of the Skyrme quasiparticle randomphase-approximation (QRPA) approach with the Skyrme forces SkM*, SVbas and SkPδ. The calculations with these forces give close results and confirm that the low-energy E0-peak is caused by the deformation-induced coupling of ISGMR with the K = 0 branch of the isoscalar giant quadrupole resonance.
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