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 00:00:00 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, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevA.81.062503; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

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