Seidlitz, M., Reiter, P., Dewald, A., Moeller, O., Bruyneel, B., Christen, S., Finke, F., Fransen, C., Gorska, M., Grawe, H., Holler, A., Ilie, G., Kotthaus, T., Kudejova, P., Lenzi, S. M., Mandal, S., Melon, B., Muecher, D., Regis, J. -M., Saha, B., von Brentano, P., Wiens, A. and Zell, K. O. (2011). Precision lifetime measurements of the first 2(+) and 4(+) states in Cr-56 at the N=32 subshell closure. Phys. Rev. C, 84 (3). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1089-490X

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Abstract

Excited states in Cr-56 have been populated after Ca-48(B-11, p2n) reactions at a beam energy of 32 MeV. The Cologne plunger device surrounded by a gamma-detector array of one EUROBALL cluster detector and five Ge detectors was employed to determine lifetimes with the recoil distance Doppler shift method. gamma gamma-coincidence data were analyzed using the differential decay curve method and precise lifetimes for the first 2(+) and 4(+) state of tau = 5.49(14) ps and tau = 3.15(11) ps, respectively, were extracted. The corresponding B(E2; 2(+) -> 0(+)) = 11.33(31) W.u. quantifies with a high accuracy the puzzling discrepancy between experimental B(E2) values in N = 32 isotones and theoretical results from large-scale shell model calculations employing modern effective nucleon-nucleon interactions.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Seidlitz, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Reiter, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dewald, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Moeller, O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bruyneel, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Christen, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Finke, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fransen, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gorska, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grawe, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Holler, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ilie, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kotthaus, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kudejova, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lenzi, S. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mandal, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Melon, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Muecher, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Regis, J. -M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Saha, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
von Brentano, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wiens, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zell, K. O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-488924
DOI: 10.1103/PhysRevC.84.034318
Journal or Publication Title: Phys. Rev. C
Volume: 84
Number: 3
Date: 2011
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; DECAY CURVE METHOD; SHELLMultiple languages
Physics, NuclearMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/48892

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