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Closed Access item Two-proton decay of the isobaric analogue state of Ar-31

Authors:Mukha, I.
Axelsson, L.
Äystö, J.
Bergmann, U. C.
García Borge, María José
Fraile, Luis M.
Fynbo, H. O. U.
Honkanen, A.
Hornshøj, P.
Jading, Y.
Jonson, B.
Jokinen, A.
Martel, Ismael
Oinonen, M.
Nilsson, T.
Nyman, G.
Petersen, B.
Riisager, K.
Siiskonen, T.
Smedberg, M. H.
Tengblad, Olof
Wenander, F.
Issue Date:16-Feb-1998
Publisher:Elsevier
Citation:Nuclear Physics A 630(1-2): 394-401 (1998)
Abstract:We have studied several two proton branches in the β-decay of Ar-31, the most intensive ones proceeding through the isobaric analogue state (IAS) in Cl-31. The energy and angular correlations of the two protons originating from the IAS have been measured. An indication of non-isotropic emission has been observed in the p+p+P-29 branch. The energy spectra of protons from the IAS 2p-branches seem to be continuous, which is difficult to explain by a sequential emission through a few intermediate levels in S-30. The model of non-sequential or democratic three-particle decay gives the best fit to the present data favoring the IAS spin-parity 5/2(+).
Description:8 pages, 1 table, 4 figures.-- Journal issue title: "Nucleus-Nucleus Collisions".
Publisher version (URL):http://dx.doi.org/10.1016/S0375-9474(97)00777-X
URI:http://hdl.handle.net/10261/10223
ISSN:0375-9474
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Appears in Collections:(CFMAC-IEM) Artículos

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