期刊
PHYSICAL REVIEW LETTERS
卷 117, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.117.062501
关键词
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资金
- Research Council of Norway [213442]
- Spanish MINECO under Programa Ramon y Cajal [11420, FIS-2014-53434-P]
- Helmholtz Association through the Nuclear Astrophysics Virtual Institute NAVI [VH-VI-417]
- Generalitat Valenciana, Spain [PROMETEOII/2014/019]
- FEDER funds of the European Commission
- Spanish Ministerio de Economia y Competitividad [FPA2014-57196-C5]
- German Bundesministerium fur Bildung und Forschung (BMBF) [05P12PKFNE TP4]
- Polish National Science Centre [DEC-2013/10/M/ST2/00427, DPN/N190/AGATA/2009, 2011/03/B/ST2/01894, UMO-2014/14/M/ST2/00738, 2015/17/B/ST2/01534]
- Science and Technology Facilities Council [ST/J000124/1, ST/L005727/1, ST/L005794/1] Funding Source: researchfish
- STFC [ST/J000124/1, ST/L005727/1, ST/L005794/1, ST/J000159/1] Funding Source: UKRI
Shape parameters of a weakly deformed ground-state band and highly deformed slightly triaxial sideband in Ca-42 were determined from E2 matrix elements measured in the first low-energy Coulomb excitation experiment performed with AGATA. The picture of two coexisting structures is well reproduced by new state-of-the-art large-scale shell model and beyond-mean-field calculations. Experimental evidence for superdeformation of the band built on 0(2)(+) has been obtained and the role of triaxiality in the A similar to 40 mass region is discussed. Furthermore, the potential of Coulomb excitation as a tool to study superdeformation has been demonstrated for the first time.
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