Combined effect of coherent Z exchange and the hyperfine interaction in the atomic parity-nonconserving interaction

Journal Article · Sun Jun 01 04:00:00 EDT 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.67.062106· OSTI ID:20636519

Johnson, W R; Safronova, M S; Safronova, U I ^[1]

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1. Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195 (United States)

The nuclear spin-dependent parity-nonconserving (PNC) interaction arising from a combination of the hyperfine interaction and the coherent, spin-independent, PNC interaction from Z exchange is evaluated using many-body perturbation theory. For the 6s{sub 1/2}-7s{sub 1/2} transition in {sup 133}Cs, we obtain a result that is about 40% smaller than that found previously by Bouchiat and Piketty [Phys. Lett. B 269, 195 (1991)]. Applying this result to {sup 133}Cs leads to an increase in the experimental value of nuclear anapole moment and exacerbates differences between constraints on PNC meson coupling constants obtained from the Cs anapole moment and those obtained from other nuclear parity violating experiments. Nuclear spin-dependent PNC dipole matrix elements, including contributions from the combined weak-hyperfine interaction, are also given for the 7s{sub 1/2}-8s{sub 1/2} transition in {sup 211}Fr and for transitions between ground-state hyperfine levels in K, Rb, Cs, Ba{sup +}, Au, Tl, Fr, and Ra{sup +}.

• OSTI ID: 20636519
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 67; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CESIUM
CHARGE EXCHANGE
COUPLING CONSTANTS
DIPOLES
ENERGY-LEVEL TRANSITIONS
FRANCIUM 211
GOLD
GROUND STATES
MANY-BODY PROBLEM
MATRIX ELEMENTS
P INVARIANCE
PARITY
PERTURBATION THEORY
POTASSIUM
RADIUM IONS
SPIN
WEAK INTERACTIONS