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Closed Access item Fine structure in the beta-delayed proton decay of Ar-33

Authors:Honkanen, A.
Axelsson, L.
Äystö, J.
García Borge, María José
Jonson, B.
Jokinen, A.
Martel, Ismael
Martínez Pinedo, Gabriel
Mukha, I.
Nilsson, T.
Nyman, G.
Petersen, B.
Poves, A.
Smedberg, M. H.
Teijeiro, A.
Tengblad, Olof
[ISOLDE Collaboration]
Keywords:Beta-delayed proton decay, Shell model, Ar-33 (from 1 GeV p on Nb-foil target, selective mass separation), Measured beta-delayed protons, Ep, Ip, Deduced relative spectroscopic amplitudes, Shell-model calculation, Gas-Si telescope spectrometer, Shell nuclei, Emission
Issue Date:16-Dec-1996
Citation:Nuclear Physics A 611(1): 47-55 (1996)
Abstract:Low-energy beta-delayed protons from Ar-33 have been measured for the first time. The data reveal states, which, despite unfavourable barrier penetrability values, strongly decay to the first excited 2+ state in S-32. The observation is discussed in terms of the standard shell model. A natural explanation is provided by the large spectroscopic amplitudes, involving s(1/2) and d(3/2) orbitals, as well as the l = 0 barrier penetrability, favouring the decay to the 2+ state.
Description:9 pages, 2 figures, 2 tables.-- PACS nrs.: 21.60.Cs; 23.40.−s; 27.30.+t; 29.30.Ep.
Publisher version (URL):http://dx.doi.org/10.1016/S0375-9474(96)00313-2
Appears in Collections:(CFMAC-IEM) Artículos

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