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Beta decay of Ar-31

AuthorsAxelsson, L.; Äystö, Juha; García Borge, María José ; Fraile, Luis M. ; Fynbo, H. O. U.; Honkanen, A.; Hornshøj, P.; Jokinen, A.; Jonson, B.; Lipas, P. O.; Martel, Ismael; Mukha, I. ; Nilsson, T.; Nyman, G.; Petersen, B.; Riisager, K.; Smedberg, M. H.; Tengblad, Olof
KeywordsRadioactivity Ar-31 (from 1 GeV p on CaO powder target, selective mass separation)
Measured βp, β2p, βγ, E-p, I-p
Deduced Ex(Cl-31)
log ft
Gamow-Teller strength
OXBASH shell-model calculations
Gamow-Teller quenching
Isospin mixing
Issue Date18-May-1998
CitationNuclear Physics A 634(4): 475-496 (1998)
AbstractA complete study of Ar-31 beta decay has been made by high-resolution charged-particle and gamma-ray spectroscopy. Beta-delayed radiation was detected by an array of three charged-particle detectors and a large-volume germanium detector. Fifteen new energy levels were discovered in Cl-31. The beta-strength distribution, measured to 14.5 MeV, is compared with a shell-model calculation in the full sd space. The quenching of the Gamow-Teller strength and the isospin impurity of the IAS in Cl-31 are discussed.
Description22 pages, 6 figures.-- PACS nrs.: 23.40.−s; 27.30.+t; 29.30.Ep; 29.30.Kv; 21.60.Cs.
Erratum to this paper published on Oct 1998 in Nuclear Physics A 641(4): 529 (1998), available at: https://digital.csic.es/handle/10261/12171
Publisher version (URL)http://dx.doi.org/10.1016/S0375-9474(98)00172-9
Appears in Collections:(CFMAC-IEM) Artículos
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