Disentanglement of magnetic field mixing reveals the spontaneous M2 decay rate for a metastable level in Xe+

[en] We have investigated the radiative decay of the metastable level 5d(4)D(7/2) in Xe+. Theoretically we find the decay to be heavily dominated by an M2 transition and not by M1/E2 transitions. Lifetime measurements of 5d(4)D(7/2) in a storage ring are difficult since magnetic mixing of the metastable with a short-lived level quenches its population. Decay rates were determined at different magnetic field strengths (B) in order to allow a nonlinear extrapolation to B=0. The experimental lifetime of 2.4 +/- 0.8 s was in agreement with the calculated value, but much smaller than previously estimated.

Disciplines :

Physics
Electrical & electronics engineering
Chemistry

Author, co-author :

Schef, P.

Lundin, P.

Biémont, Emile ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie

Kallberg, A.

Norlin, L. O.

Palmeri, P.

Royen, P.

Simonsson, A.

Mannervik, S.

Language :

English

Title :

Disentanglement of magnetic field mixing reveals the spontaneous M2 decay rate for a metastable level in Xe+

Publication date :

August 2005

Journal title :

Physical Review. A, Atomic, molecular, and optical physics

ISSN :

1050-2947

eISSN :

1094-1622

Publisher :

American Physical Soc, College Pk, United States - Maryland

Volume :

Issue :

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 22 March 2010

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