Isotope shift of the 1s2p {sup 3}P{sub 0}-1s2s {sup 1}S{sub 0} level splitting in heavy He-like ions: Implications for atomic parity-nonconservation studies

Journal Article · Tue Jun 15 04:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.062503· OSTI ID:21437880

Ferro, Fabrizio; Artemyev, Anton; Surzhykov, Andrey ^[1]; Stoehlker, Thomas ^[1]

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1. Physikalisches Institut, Universitaet Heidelberg, Philosophenweg 12, D-69120 Heidelberg (Germany)

Heavy He-like ions are considered to be promising candidates for atomic parity-nonconservation (PNC) studies, thanks to their relatively simple atomic structure and the significant mixing between the almost degenerate (for the atomic numbers Z{approx}64 and Z{approx}91) opposite-parity levels 1s2s {sup 1}S{sub 0} and 1s2p {sup 3}P{sub 0}. A number of experiments exploiting this level mixing have been proposed, and their implementation requires a precise knowledge of the 2 {sup 3}P{sub 0}-2 {sup 1}S{sub 0} energy splitting for different nuclear charges and isotopes. In this paper we performed a theoretical analysis of the level splitting, employing the relativistic many-body perturbation theory and including QED corrections for all isotopes in the intervals 54{<=}Z{<=}71 and 86{<=}Z{<=}93. Possible candidates for future experimental PNC studies are discussed.

• OSTI ID: 21437880
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 81; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
ATOMIC NUMBER
CHARGED PARTICLES
CORRECTIONS
ELECTRODYNAMICS
ELECTRONIC STRUCTURE
ENERGY LEVELS
ENERGY RANGE
FIELD THEORIES
INVARIANCE PRINCIPLES
IONS
MANY-BODY PROBLEM
MULTICHARGED IONS
P INVARIANCE
P STATES
PARITY
PARTICLE PROPERTIES
PERTURBATION THEORY
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
RELATIVISTIC RANGE
S STATES
SPECTRAL SHIFT