Fine structure in the beta-delayed proton decay of Ar-33
Artikel i vetenskaplig tidskrift, 1996
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.
deduced relative spectroscopic amplitudes
Ar-33 (from 1 GeV p on Nb-foil
Ip
measured beta-delayed protons
Gas-Si telescope spectrometer
EMISSION
selective mass separation)
target
beta-delayed proton decay
SHELL NUCLEI
shell-model calculation
Ep
shell model
Författare
A. Honkanen
L. Axelsson
J. Aysto
M. J. G. Borge
Björn Jonson
Chalmers, Institutionen för experimentell fysik, Subatomär fysik
A. Jokinen
I. Martel
G. MartinezPinedo
I. Mukha
Thomas Nilsson
Chalmers, Institutionen för experimentell fysik, Subatomär fysik
Göran Hugo Nyman
Chalmers, Institutionen för experimentell fysik, Subatomär fysik
B. Petersen
A. Poves
Martin Smedberg
Chalmers, Institutionen för experimentell fysik, Subatomär fysik
A. Teijeiro
O. Tengblad
Nuclear Physics A
0375-9474 (ISSN)
Vol. 611 1 47-55Ämneskategorier
Subatomär fysik
DOI
10.1016/S0375-9474(96)00313-2