Klintefjord, M., Hadynska-Klek, K., Gorgen, A., Bauer, C., Garrote, F. L. Bello, Bonig, S., Bounthong, B., Damyanova, A., Delaroche, J. -P., Fedosseev, V., Fink, D. A., Giacoppo, F., Girod, M., Hoff, P., Imai, N., Korten, W., Larsen, A. -C., Libert, J., Lutter, R., Marsh, B. A., Molkanov, P. L., Naidja, H., Napiorkowski, P., Nowacki, F., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Rothe, S., Seliverstov, M. D., Siebeck, B., Siem, S., Srebrny, J., Stora, T., Thole, P., Tornyi, T. G., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Voulot, D., Warr, N., Wenander, F., De Witte, H. and Zielinska, M. (2016). Structure of low-lying states in Sm-140 studied by Coulomb excitation. Phys. Rev. C, 93 (5). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9993

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Abstract

The electromagnetic structure of Sm-140 was studied in a low-energy Coulomb excitation experiment with a radioactive ion beam from the REX-ISOLDE facility at CERN. The 2(+) and 4(+) states of the ground-state band and a second 2(+) state were populated by multistep excitation. The analysis of the differential Coulomb excitation cross sections yielded reduced transition probabilities between all observed states and the spectroscopic quadrupole moment for the 2(1)(+) state. The experimental results are compared to large-scale shell model calculations and beyond-mean-field calculations based on the Gogny D1S interaction with a five-dimensional collective Hamiltonian formalism. Simpler geometric and algebraic models are also employed to interpret the experimental data. The results indicate that Sm-140 shows considerable. softness, but in contrast to earlier speculation no signs of shape coexistence at low excitation energy. This work sheds more light on the onset of deformation and collectivity in this mass region.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Klintefjord, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hadynska-Klek, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gorgen, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bauer, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Garrote, F. L. BelloUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bonig, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bounthong, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Damyanova, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Delaroche, J. -P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fedosseev, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fink, D. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Giacoppo, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Girod, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hoff, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Imai, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Korten, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Larsen, A. -C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Libert, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lutter, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Marsh, B. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Molkanov, P. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Naidja, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Napiorkowski, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nowacki, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pakarinen, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rapisarda, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Reiter, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Renstrom, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rothe, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Seliverstov, M. D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Siebeck, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Siem, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Srebrny, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stora, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Thole, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tornyi, T. G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tveten, G. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Van Duppen, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vermeulen, M. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Voulot, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Warr, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wenander, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
De Witte, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zielinska, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-276055
DOI: 10.1103/PhysRevC.93.054303
Journal or Publication Title: Phys. Rev. C
Volume: 93
Number: 5
Date: 2016
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 2469-9993
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
NUCLEAR-DATA SHEETS; SHAPE COEXISTENCE; DEFORMATION; MO-94; BEAMS; ONSET; DECAYMultiple languages
Physics, NuclearMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/27605

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