AGATA Physics Workshop Istanbul, Turkey May 4-7, 2010 G. Duchêne Deformation in N=40 nuclei G. Duchêne , R. Lozeva, C. Beck, D. Curien, F. Didierjean, Ch. Finck, F. Nowacki, K. Sieja IPHC Strasbourg C. Domingo-Pardo, J. Gerl and the GSI group GSI Darmstadt D. Verney, F.Azaiez, S. Franchoo, F. Ibrahim, F. Le Blanc, I. Matea, M. Niikura, I. Stefan IPN Orsay
Deformation in N=40 nuclei G. Duchêne , R. Lozeva, C. Beck, D. Curien, F. Didierjean, Ch. Finck, F. Nowacki, K. Sieja IPHC Strasbourg C. Domingo-Pardo , J. Gerl and the GSI group GSI Darmstadt D. Verney, F.Azaiez, S. Franchoo, F. Ibrahim, F. Le Blanc, I. Matea, M. Niikura, I. Stefan IPN Orsay. - PowerPoint PPT Presentation
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AGATA Physics Workshop Istanbul, Turkey May 4-7, 2010
G. D
uch
ên
e
In2p3
Deformation in N=40 nuclei
G. Duchêne , R. Lozeva, C. Beck, D. Curien, F. Didierjean, Ch. Finck, F. Nowacki, K. Sieja
IPHC StrasbourgC. Domingo-Pardo, J. Gerl and the GSI group
GSI DarmstadtD. Verney, F.Azaiez, S. Franchoo, F. Ibrahim, F. Le Blanc, I. Matea,
M. Niikura, I. StefanIPN Orsay
AGATA Physics Workshop Istanbul, Turkey May 4-7, 2010
G. D
uch
ên
e
In2p3
Deformation in Fe and Cr nucleiE. Caurier et al., Eur. Phys. J A15 (2002) 145
Fe
Cr Cr
AGATA Physics Workshop Istanbul, Turkey May 4-7, 2010
G. D
uch
ên
e
In2p3
68Ni
Is 68Ni a magic nucleus ? Increase of the 21
+ excitation energy Reduction of the B(E2) value
No pronounced irregularity in the 2-neutron separation energy
Strong 2p-2h component -> excitation of a neutron pair into g9/2 orbital
Major part of the B(E2) strength around 5 MeV
Deformation in 68Ni 68Ni gs is spherical (Gaudefroy et al.,
Phys. Rev. C80 (2009) 064313) Main 01
+ state configuration is 4p-4h Does not generate much
deformation
K. Langanke et al., Phys. Rev. C67 (2003) 044314
AGATA Physics Workshop Istanbul, Turkey May 4-7, 2010
G. D
uch
ên
e
In2p3
In the vicinity of 68Ni
67Co Collective 1p-2h proton intruder First excited ½- state with large
quadrupole deformation β ~ 0.25-0.4D. Pauwels et al., Phys. Rev. C 78, 041307(R)
(2009)
69Cu Measured magnetic moment of 13/2+
state Considerable proton excitations
across the Z=28 proton gap Deviate from sphericityG. Georgiev et al., J. Phys. G: Nucl. Part. Phys.
28, 2993 (2002)
70Zn Given as a γ-soft nucleus (Gaudefroy et
al., Phys. Rev. C80 (2009) 064313)
Hunt for deformation with np-nh
configurations (n=6, 8) at higher
excitation energy
AGATA Physics Workshop Istanbul, Turkey May 4-7, 2010