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Title: Relativistic Coulomb excitation of neutron-rich Cr-54,Cr-56,Cr-58: On the pathway of magicity from N=40 to N=32
Authors: Burger, A ×
Saito, TR
Grawe, H
Hubel, H
Reiter, P
Gerl, J
Gorska, M
Wollersheim, HJ
Al-Khatib, A
Banu, A
Beck, T
Becker, F
Bednarczyk, P
Benzoni, G
Bracco, A
Brambilla, S
Bringel, P
Camera, F
Clement, E
Doornenbal, P
Geissel, H
Gorgen, A
Grebosz, J
Hammond, G
Hellstrom, M
Honma, M
Kavatsyuk, A
Kavatsyuk, O
Kmiecik, M
Kojouharov, I
Korten, W
Kurz, N
Lozeva, R
Maj, A
Mandal, S
Million, B
Muralithar, S
Neusser, A
Nowacki, F
Otsuka, Taka
Podolyak, Z
Saito, N
Singh, AK
Weick, H
Wheldon, C
Wieland, O
Winkler, M #
Issue Date: 2005
Publisher: ELSEVIER SCIENCE BV
Series Title: Physics Letters B vol:622 issue:1-2 pages:29-34
Abstract: The first excited 2
+
states in
54,56,58
Cr were populated by Coulomb excitation at relativistic energies and
γ
rays were
measured using the RISING setup at GSI. For
56
Cr and
58
Cr the
B(
E2
,
2
+
1

0
+
)
values relative to the previously known
B(
E2
)
value for
54
Cr are determined as 8.7(3.0) and 14.8(4.2) W.u., respectively. The results are consistent with a subshell
closure at neutron number
N
=
32 which was already indicated by the higher energy of the 2
+
1
state in
56
Cr. Recent large-scale
shell model calculations using effective interactions reproduce the trend in the excitation energies, but fail to account for the
minimum in the
B(
E2
)
values at
N
=
32.

2005 Elsevier B.V. All rights reserved
ISSN: 0370-2693
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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