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Title: High spin structure and intruder configurations in P-31
Authors: Ionescu-Bujor, M ×
Iordachescu, A
Napoli, DR
Lenzi, SM
Marginean, N
Otsuka, Taka
Utsuno, Y
Ribas, RV
Axiotis, M
Bazzacco, D
Bizzeti-Sona, AM
Bizzeti, PG
Brandolini, F
Bucurescu, D
Cardona, MA
de Angelis, G
De Poli, M
Della Vedova, F
Farnea, E
Gadea, A
Hojman, D
Kalfas, CA
Kroll, T
Lunardi, S
Martinez, T
Mason, P
Pavan, P
Quintana, B
Alvarez, CR
Ur, CA
Vlastou, R
Zilio, S #
Issue Date: 2006
Publisher: Published for the American Physical Society by the American Institute of Physics
Series Title: Physical Review C, Nuclear Physics vol:73 issue:2
Article number: 024310
Abstract: The nucleus
31
P has been studied in the
24
Mg(
16
O,2
αp
) reaction with a 70-MeV
16
O beam. A complex level
scheme extended up to spins 17/2
+
and 15/2

, on positive and negative parity, respectively, has been established.
Lifetimes for the new states have been investigated by the Doppler shift attenuation method. Two shell-model
calculations have been performed to describe the experimental data, one by using the code
ANTOINE
in a valence
space restricted to the
sd
shell, and the other by applying the Monte Carlo shell model in a valence space
including the
sd
-
fp
shells. The latter calculation indicates that intruder excitations, involving the promotion of
a
T
=
0 proton-neutron pair to the
fp
shell, play a dominant role in the structure of the positive-parity high-spin
states of
31
P.
ISSN: 0556-2813
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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