N II Electric Quadrupole Transition Rate Measured at a Heavy-Ion Storage Ring

2005 ◽  
Vol 72 (1) ◽  
pp. 35-37 ◽  
Author(s):  
E Träbert ◽  
G Saathoff ◽  
A Wolf
1998 ◽  
Vol 76 (11) ◽  
pp. 899-906 ◽  
Author(s):  
E Träbert ◽  
A Wolf ◽  
E H Pinnington ◽  
J Linkemann ◽  
E J Knystautas ◽  
...  

The decay by magnetic dipole and electric quadrupole (M1 and E2) transitions of the 2s22p2 1D2 level in the ground complex of the C-like ion Si8+ and the 2s22p4 1D2 level in the O-like ion Si6+ have been optically observed with ions circulating in a storage ring. The measured natural level lifetimes of (38.3 ± 0.3) ms for Si8+ and (636 ± 0.7) ms for Si6+ corroborate theoretical data for such forbidden decays in multicharged ions of astrophysical interest. PACS Nos.: 32.70.Cs, 32.30.Jc, 34.50.Fa


2006 ◽  
Vol 39 (4) ◽  
pp. 945-954 ◽  
Author(s):  
E Träbert ◽  
S Reinhardt ◽  
J Hoffmann ◽  
A Wolf

Author(s):  
F. Nolden ◽  
S. Baumann ◽  
K. Beckert ◽  
H. Eickhoff ◽  
B. Franczak ◽  
...  

2014 ◽  
Vol 488 (6) ◽  
pp. 062012
Author(s):  
D Bernhardt ◽  
A Becker ◽  
C Brandau ◽  
M Grieser ◽  
M Hahn ◽  
...  

2018 ◽  
Vol 178 ◽  
pp. 02018
Author(s):  
Hiroshi Watanabe

The level structures of the very neutron-rich nuclei 128Pd82 and 126Pd80 have been investigated for the first time. A new isomer with a half-life of 5.8(8) μs in 128Pd is proposed to have a spin and parity of 8+ and is associated with a maximally aligned configuration arising from the g9/2Pd proton subshell with seniority υ = 2. The level sequence below the 8+ isomer is similar to that in the N = 82 isotone 130Cd, but the electric quadrupole transition that depopulates the 8+ isomer is more hindered in 128Pd than in 130Cd, as expected in the seniority scheme for a semi-magic, spherical nucleus. For 126Pd, three new isomers with Jπ = (5-), (7-), and (10+) have been identified with half-lives of 0.33(4) μs, 0.44(3) μs, and 23.0(8) ms, respectively. The smaller energy difference between the 10+ and 7- isomers in 126Pd than in the heavier N = 80 isotones can be interpreted as being ascribed to the monopole shift of the h11/2 neutron orbit. The nature of the N = 82 shell closure scrutinized with these characteristic isomers is discussed.


2020 ◽  
Vol 22 (6) ◽  
pp. 062001 ◽  
Author(s):  
Tridib Ray ◽  
Ratnesh K Gupta ◽  
Vandna Gokhroo ◽  
Jesse L Everett ◽  
Thomas Nieddu ◽  
...  

1992 ◽  
Vol 69 (7) ◽  
pp. 1042-1045 ◽  
Author(s):  
P. Balling ◽  
L. H. Andersen ◽  
T. Andersen ◽  
H. K. Haugen ◽  
P. Hvelplund ◽  
...  

2001 ◽  
Vol T92 (1) ◽  
pp. 444-446 ◽  
Author(s):  
E. Tr?bert ◽  
E. Tr?bert ◽  
E. Tr?bert

2011 ◽  
Vol 28 (1) ◽  
pp. 013201 ◽  
Author(s):  
Qu Liu ◽  
Yao Huang ◽  
Jian Cao ◽  
Bao-Quan Ou ◽  
Bin Guo ◽  
...  

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