Correlation and negative continuum effects for the relativistic M1 transition in two-electron ions using the multiconfiguration Dirac-Fock method

被引：82

作者：

Indelicato, P

机构：

[1] Laboratoire de Physique Atomique et Nucléaire, Unité de Recherche Associée au CNRS no. ERS112, Université Pierre et Marie Curie, Paris, F-75252, Case 93

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.77.3323

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The role of the E < -mc(2) continuum and of correlation in the multiconfiguration Dirac-Fock calculation of nondiagonal one-electron operators is describe;l. Because df its importance and symmetry which emphasize both effects, we study the 1s2s S-3(1) --> 1s(2) S-1(0) relativistic M1 transition in two-electron ions. It is shown that both contributions have the same magnitude, and must be included even at low Z. These contributions improve significantly the agreement:between theory and experiment at all Z, reducing the disagreement for Nb from 2.7 to -1.8 times the experimental error.

引用

页码：3323 / 3326

页数：4

共 36 条

[1] LIFETIME OF 2 3S1 STATE IN HELIUMLIKE SULFUR AND CHLORINE [J].

BEDNAR, JA ;

COCKE, CL ;

CURNUTTE, B ;

RANDALL, R .

PHYSICAL REVIEW A, 1975, 11 (02) :460-464

[2] NOTE ON MCDF CORRELATION CALCULATIONS FOR HIGH-Z IONS [J].

BIERON, J ;

FISCHER, CF ;

YNNERMAN, A .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1994, 27 (20) :4829-4834

[3] HYPERFINE QUENCHING AND MEASUREMENT OF THE 2(3)P(0)-2(3)P(1) FINE-STRUCTURE SPLITTING IN HELIUM-LIKE SILVER (AG45+) [J].

BIRKETT, BB ;

BRIAND, JP ;

CHARLES, P ;

DIETRICH, DD ;

FINLAYSON, K ;

INDELICATO, P ;

LIESEN, D ;

MARRUS, R ;

SIMIONOVICI, A .

PHYSICAL REVIEW A, 1993, 47 (04) :R2454-R2457

[4] EVALUATION OF 2-PHOTON-EXCHANGE GRAPHS FOR HIGHLY-CHARGED HELIUM-LIKE IONS [J].

BLUNDELL, SA ;

MOHR, PJ ;

JOHNSON, WR ;

SAPIRSTEIN, J .

PHYSICAL REVIEW A, 1993, 48 (04) :2615-2626

[5] ON THE INTERACTION OF 2 ELECTRONS [J].

BROWN, GE ;

RAVENHALL, DG .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1951, 208 (1095) :552-559

[6] EXCITATION-ENERGIES AND LINE STRENGTHS IN MG ISOELECTRONIC SEQUENCE [J].

CHENG, KT ;

JOHNSON, WR .

PHYSICAL REVIEW A, 1977, 16 (01) :263-272

[7] M1 DECAY OF THE 2(3)S(1) STATE IN HELIUM-LIKE KRYPTON [J].

CHENG, S ;

DUNFORD, RW ;

LIU, CJ ;

ZABRANSKY, BJ ;

LIVINGSTON, AE ;

CURTIS, LJ .

PHYSICAL REVIEW A, 1994, 49 (04) :2347-2353

[8]

Desclaux J., 1993, METHODS TECHNIQUES C

[9] THEORY OF RELATIVISTIC MAGNETIC DIPOLE TRANSITIONS - LIFETIME OF METASTABLE 2 S-3 STATE OF HELIUMLIKE IONS [J].

DRAKE, GWF .

PHYSICAL REVIEW A, 1971, 3 (03) :908-&

[10] LIFETIME OF THE 23S1 STATE OF HELIUMLIKE BR-79(33+) [J].

DUNFORD, RW ;

CHURCH, DA ;

LIU, CJ ;

BERRY, HG ;

RAPHAELIAN, MLA ;

HASS, M ;

CURTIS, LJ .

PHYSICAL REVIEW A, 1990, 41 (07) :4109-4111

← 1 2 3 4 →