# Search for mixed-symmetry states of nuclei in the vicinity of the double-magic nucleus

Abstract : In this work we present the results from two experiments dedicated to search for quadrupole-collective isovector valence-shell excitation, the states with so-called mixed proton-neutron symmetry (MSS), in nuclei around the doubly magic nucleus $^{208}$Pb. $^{212}$Po was studied in an α-transfer reaction. $^{204}$Hg was studied in an inverse kinematics Coulomb excitation reaction on a carbon target. Both experiments provide indications for existence of one-phonon MSSs. Those are the first experimentally identified MSSs in the mass A ≈ 208 region.
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Conference papers

Cited literature [23 references]

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### Citation

D. Kocheva, R. Stegmann, G. Rainovski, J. Jolie, N. Pietralla, et al.. Search for mixed-symmetry states of nuclei in the vicinity of the double-magic nucleus. International Conference on Nuclear Structure and Related Topics (NSRT15) , Jul 2015, Dubna, Russia. pp.03004, ⟨10.1051/epjconf/201610703004⟩. ⟨in2p3-01261356⟩

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