Article (Scientific journals)
Inclusion of Electric Octupole Contributions Explains the Fast Radiative Decays of Two Metastable States in Ar+
Lundin, P.; Gurell, J.; Norlin, L. O. et al.
2007In Physical Review Letters, 99
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Abstract :
[en] A laser probing investigation has yielded the lifetimes of the 3s23p41D3d 2G7=2;9=2 metastable doublet states of Ar. The results, obtained with the CRYRING ion storage ring of Stockholm, are 3:0 0:4 and 2:1 0:1 s, respectively. Comparisons with theoretical values calculated with two independenttheoretical approaches, i.e., the pseudorelativistic Hartree-Fock method and the multiconfiguration Breit-Pauli approach, have allowed us to establish the unexpected and extraordinary strong contribution of an electric octupole (E3) transition to the ground state, in addition to the M1 decay channels to the 3d 2;4F states and the E2 contributions to the 4s 2P, 2D states.
Disciplines :
Physics
Author, co-author :
Lundin, P.
Gurell, J.
Norlin, L. O.
Royen, P.
Mannervik, S.
Palmeri, P.
Quinet, Pascal  ;  Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Fivet, V.
Biémont, Emile ;  Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Language :
English
Title :
Inclusion of Electric Octupole Contributions Explains the Fast Radiative Decays of Two Metastable States in Ar+
Publication date :
2007
Journal title :
Physical Review Letters
ISSN :
0031-9007
eISSN :
1079-7114
Publisher :
American Physical Society, Ridge, United States - New York
Volume :
99
Peer reviewed :
Peer Reviewed verified by ORBi
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