Hagen, T. W., Gorgen, A., Korten, W., Grente, L., Salsac, M. -D., Farget, F., Braunroth, T., Bruyneel, B., Celikovic, I., Clement, E., de France, G., Delaune, O., Dewald, A., Dijon, A., Hackstein, M., Jacquot, B., Litzinger, J., Ljungvall, J., Louchart, C., Michelagnoli, C., Napoli, D. R., Recchia, F., Rother, W., Sahin, E., Siem, S., Sulignano, B., Theisen, Ch. and Valiente-Dobon, J. J. (2018). Lifetimes of excited states in triaxially deformed Tc-107 and Rh-109,Rh-111,Rh-113. Eur. Phys. J. A, 54 (3). NEW YORK: SPRINGER. ISSN 1434-601X

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Abstract

Lifetimes of excited states in Tc-107, Rh-109, Rh-111, and Rh-113 were measured at GANIL using the Recoil-Distance Doppler Shift method. The neutron-rich nuclei were produced in fission reactions in inverse kinematics with a U-238 beam impinging on a Be-9 target. Fission fragments were identified event-by-event in the ray-tracing spectrometer VAMOS++ and correlated with prompt gamma rays observed around the target position with the EXOGAM Ge detector array. Several lifetimes were obtained for states in the positiveparity yrast bands in the four nuclei and compared to triaxial particle-rotor calculations. The results clarify the configuration for the strongest positive-parity band in Tc-107 and suggest a gradual increase of triaxial deformation with atomic number Z, reaching almost maximum triaxiality for the neutron-rich Rh nuclei.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Hagen, T. W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gorgen, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Korten, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grente, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Salsac, M. -D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Farget, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Braunroth, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bruyneel, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Celikovic, I.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Clement, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
de France, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Delaune, O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dewald, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dijon, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hackstein, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jacquot, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Litzinger, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ljungvall, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Louchart, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Michelagnoli, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Napoli, D. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Recchia, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rother, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sahin, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Siem, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sulignano, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Theisen, Ch.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Valiente-Dobon, J. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-192368
DOI: 10.1140/epja/i2018-12482-9
Journal or Publication Title: Eur. Phys. J. A
Volume: 54
Number: 3
Date: 2018
Publisher: SPRINGER
Place of Publication: NEW YORK
ISSN: 1434-601X
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
HIGH-SPIN STRUCTURE; DIFFERENTIAL PLUNGER; FISSION FRAGMENTS; ROTATIONAL BANDS; 100 REGION; ISOTOPES; NUCLEI; DEFORMATION; SPECTROMETER; CHIRALITYMultiple languages
Physics, Nuclear; Physics, Particles & FieldsMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/19236

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