Precision measurement of the electric dipole intercombination rate in C2+

被引:103
作者
Doerfert, J
Trabert, E
Wolf, A
Schwalm, D
Uwira, O
机构
[1] UNIV HEIDELBERG,INST PHYS,D-69120 HEIDELBERG,GERMANY
[2] MAX PLANCK INST KERNPHYS,D-69117 HEIDELBERG,GERMANY
[3] UNIV GIESSEN,STRAHLENZENTRUM,D-35392 GIESSEN,GERMANY
关键词
D O I
10.1103/PhysRevLett.78.4355
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The electric dipole intercombination decay of the 2s2p P-3(1)0 level in the Be-like ion C2+ has been optically observed with ions circulating in a heavy-ion storage ring. The measured transition probability of (102.94 +/- 0.14) s(-1), corresponding to a lifetime of (9.714 +/- 0.013) ms, is in good agreement with recent theoretical calculations. This precision measurement thus resolves the long standing discrepancy of data from a radiofrequency ion trap experiment with theoretical predictions.
引用
收藏
页码:4355 / 4358
页数:4
相关论文
共 35 条
[1]  
ALLARD N, 1990, ASTRON ASTROPHYS SUP, V84, P563
[2]   DIRECT EXCITATION IN ATOMIC-COLLISIONS - STUDIES OF QUASI-ONE-ELECTRON SYSTEMS [J].
ANDERSEN, N ;
NIELSEN, SE .
ADVANCES IN ATOMIC AND MOLECULAR PHYSICS, 1982, 18 :265-308
[3]   METASTABLE ION LIFETIME STUDIES UTILIZING A HEAVY-ION STORAGE RING - MEASUREMENTS ON BE- [J].
BALLING, P ;
ANDERSEN, LH ;
ANDERSEN, T ;
HAUGEN, HK ;
HVELPLUND, P ;
TAULBJERG, K .
PHYSICAL REVIEW LETTERS, 1992, 69 (07) :1042-1045
[4]  
BRAGE T, IN PRESS
[5]  
Cheng K. T., 1979, Atomic Data and Nuclear Data Tables, V24, P111, DOI 10.1016/0092-640X(79)90006-8
[6]  
CHOU HS, 1994, CHINESE J PHYS, V32, P261
[7]   Predictive systematization of line strengths for the 2s(2)-2s2p resonance and intercombination transitions in the Be isoelectronic sequence [J].
Curtis, LJ ;
Ellis, DG .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1996, 29 (04) :645-654
[8]   ISOELECTRONIC SMOOTHING OF LINE STRENGTHS IN INTERMEDIATE COUPLING [J].
CURTIS, LJ .
PHYSICA SCRIPTA, 1991, 43 (02) :137-143
[9]   OSCILLATOR-STRENGTHS OF 2SS21-2-2P21-20, 3-2 TRANSITIONS IN FEXXIV AND 2S2S10-2S2PARAP310 TRANSITION IN FEXXIII [J].
DIETRICH, DD ;
LEAVITT, JA ;
BASHKIN, S ;
CONWAY, JG ;
GOULD, H ;
MACDONALD, D ;
MARRUS, R ;
JOHNSON, BM ;
PEGG, DJ .
PHYSICAL REVIEW A, 1978, 18 (01) :208-211
[10]   RADIATIVE DECAY OF THE 2P 2P3/2,1/2 STATES OF LITHIUM-LIKE KRYPTON (Z=36) AND THE 2S2P3P1 STATE OF BERYLLIUM-LIKE KRYPTON [J].
DIETRICH, DD ;
LEAVITT, JA ;
GOULD, H ;
MARRUS, R .
PHYSICAL REVIEW A, 1980, 22 (03) :1109-1115