Seidlitz, M., Reiter, P., Altenkirch, R., Bastin, B., Bauer, C., Blazhev, A., Bree, N., Bruyneel, B., Butler, P. A., Cederkall, J., Davinson, T., De Witte, H., DiJulio, D. D., Diriken, J., Gaffney, L. P., Geibel, K., Georgiev, G., Gernhaeuser, R., Huyse, M., Kesteloot, N., Kroell, T., Kruecken, R., Lutter, R., Pakarinen, J., Radeck, F., Scheck, M., Schneiders, D., Siebeck, B., Sotty, C., Steinbach, T., Taprogge, J., Van Duppen, P., de Walle, J. Van, Voulot, D., Warr, N., Wenander, F., Wimmer, K., Woods, P. J. and Wrzosek-Lipska, K. (2014). Coulomb excitation of Na-29,Na-30: Mapping the borders of the island of inversion. Phys. Rev. C, 89 (2). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1089-490X

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Abstract

Nuclear shell evolution in neutron-rich Na nuclei around N = 20 was studied by determining reduced transition probabilities, i.e., B(E2) and B(M1) values, in order to map the border of the island of inversion. To this end Coulomb-excitation experiments, employing radioactive Na-29,Na-30 beams with a final beam energy of 2.85 MeV/nucleon, were performed at REX-ISOLDE, CERN. De-excitation gamma rays were detected by the MINIBALL gamma-ray spectrometer in coincidence with scattered particles in a segmented Si detector. Transition probabilities to excited states were deduced. The measured B(E2) values agree well with shell-model predictions, supporting the idea that in the Na isotopic chain the ground-state wave function contains significant intruder admixture already at N = 18, with N = 19 having an almost pure two-particle-two-hole deformed ground-state configuration.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Seidlitz, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Reiter, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Altenkirch, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bastin, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bauer, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Blazhev, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bree, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bruyneel, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Butler, P. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cederkall, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Davinson, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
De Witte, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
DiJulio, D. D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Diriken, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gaffney, L. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Geibel, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Georgiev, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gernhaeuser, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Huyse, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kesteloot, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kroell, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kruecken, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lutter, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pakarinen, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Radeck, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Scheck, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schneiders, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Siebeck, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sotty, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Steinbach, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Taprogge, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Van Duppen, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
de Walle, J. VanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Voulot, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Warr, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wenander, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wimmer, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Woods, P. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wrzosek-Lipska, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-445807
DOI: 10.1103/PhysRevC.89.024309
Journal or Publication Title: Phys. Rev. C
Volume: 89
Number: 2
Date: 2014
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 1089-490X
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
NUCLEAR-DATA SHEETS; COLLECTIVITY; DEFORMATION; CHALLENGES; FRONTIERS; MINIBALL; DETECTOR; MOMENTS; STATES; MG-32Multiple languages
Physics, NuclearMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/44580

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