High-precision calculations of the 1s22s2p 1P1 → 1s22s2 1S0 spin-allowed E1 transition in C III

被引：5

作者：

Bilal, M. ^{[1
,2
,3
]}

Volotka, A. V. ^{[1
,2
]}

Beerwerth, R. ^{[1
,2
,3
]}

Rothhardt, J. ^{[1
,2
,4
]}

Hilbert, V ^{[1
,2
,4
]}

Fritzsche, S. ^{[1
,2
,3
]}

机构：

[1] Helmholtz Inst Jena, Frobelstieg 3, D-07743 Jena, Germany

[2] GSI Helmholtzzentrum Schwerionenforsch GmbH, Planckstr 1, D-64291 Darmstadt, Germany

[3] Friedrich Schiller Univ Jena, Theoret Phys Inst, Max Wien Pl 1, D-07743 Jena, Germany

[4] Fraunhofer Inst Appl Opt & Precis Engn, Albert Einstein Str 7, D-07745 Jena, Germany

来源：

PHYSICAL REVIEW A | 2019年 / 99卷 / 06期

关键词：

ATOMIC-STRUCTURE; PROBABILITIES; LIFETIMES; CARBON; AMPLITUDES; LITHIUM; RATES; LINES; IONS;

D O I：

10.1103/PhysRevA.99.062511

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Large-scale relativistic calculations are performed for the transition energy and line strength of the 1s(2)2s2p P-1(1) - 1s(2)2s(2) S-1(0) transition in Be-like carbon. Based on the multiconfiguration Dirac-Hartree-Fock (MCDHF) approach, different correlation models are developed to account for all major electron-electron correlation contributions. These correlation models are tested with various sets of the initial and the final-state wave functions. The uncertainty of the predicted line strength due to missing correlation effects is estimated from the differences between the results obtained with those models. The finite nuclear mass effect is accurately calculated taking into account the energy, wave functions, as well as operator contributions. As a result, a reliable theoretical benchmark of the E1 line strength is provided to support high-precision lifetime measurement of the 1s(2)2s2p P-1(1) state in Be-like carbon.

引用

页数：10

共 50 条

[1] Ab initio calculations of the hyperfine structure of zinc and evaluation of the nuclear quadrupole moment Q(67Zn) [J].

Bieron, Jacek ;

Filippin, Livio ;

Gaigalas, Gediminas ;

Godefroid, Michel ;

Jonsson, Per ;

Pyykko, Pekka .

PHYSICAL REVIEW A, 2018, 97 (06)

[2] Lifetime determination of the Fe XIV 3s23p 2P3/2o metastable level [J].

Brenner, G. ;

Crespo Lopez-Urrutia, J. R. ;

Harman, Z. ;

Mokler, P. H. ;

Ullrich, J. .

PHYSICAL REVIEW A, 2007, 75 (03)

[3] LIFETIME MEASUREMENTS OF CARBON IN EXTREME ULTRAVIOLET [J].

BUCHETPOULIZAC, MC ;

BUCHET, JP .

PHYSICA SCRIPTA, 1973, 8 (1-2) :40-42

[4] MEAN LIVES OF SOME ASTROPHYSICALLY IMPORTANT EXCITED-LEVELS IN CARBON, NITROGEN, AND OXYGEN [J].

CHANG, MW .

ASTROPHYSICAL JOURNAL, 1977, 211 (01) :300-307

[5] Large-scale relativistic configuration-interaction calculation of the 2s2 1S0-2s2p 3P1 intercombination transition in CIII -: art. no. 042507 [J].

Chen, MH ;

Cheng, KT ;

Johnson, WR .

PHYSICAL REVIEW A, 2001, 64 (04) :7

[6] Generation of high photon flux coherent soft x-ray radiation with few-cycle pulses [J].

Demmler, Stefan ;

Rothhardt, Jan ;

Haedrich, Steffen ;

Krebs, Manuel ;

Hage, Arvid ;

Limpert, Jens ;

Tuennermann, Andreas .

OPTICS LETTERS, 2013, 38 (23) :5051-5054

[7] Negative-energy contributions to transition amplitudes in heliumlike ions [J].

Derevianko, A ;

Savukov, IM ;

Johnson, WR ;

Plante, DR .

PHYSICAL REVIEW A, 1998, 58 (06) :4453-4461

[8] GRASP - A GENERAL-PURPOSE RELATIVISTIC ATOMIC-STRUCTURE PROGRAM [J].

DYALL, KG ;

GRANT, IP ;

JOHNSON, CT ;

PARPIA, FA ;

PLUMMER, EP .

COMPUTER PHYSICS COMMUNICATIONS, 1989, 55 (03) :425-456

[9] Multiconfiguration calculations of electronic isotope shift factors in Al I [J].

Filippin, Livio ;

Beerwerth, Randolf ;

Ekman, Jorgen ;

Fritzsche, Stephan ;

Godefroid, Michel ;

Jonsson, Per .

PHYSICAL REVIEW A, 2016, 94 (06)

[10] ALLOWED TRANSITIONS AND INTERCOMBINATION LINES IN C-III AND C-II [J].

FISCHER, CF .

PHYSICA SCRIPTA, 1994, 49 (03) :323-330

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