1932

Abstract

Anapole moments are parity-odd, time-reversal-even moments of the 1 projection of the electromagnetic current. Although it was recognized, soon after the discovery of parity violation in the weak interaction, that elementary particles and composite systems such as nuclei must have anapole moments, it proved difficult to isolate this weak radiative correction. The first successful measurement, an extraction of the nuclear anapole moment of 133Cs from the hyperfine dependence of the atomic parity violation, was obtained only recently. An important anapole moment bound in thallium also exists. We discuss these measurements and their significance as tests of the hadronic weak interaction, focusing on the mechanisms that operate within the nucleus to generate the anapole moment. The atomic results place new constraints on weak meson-nucleon couplings, constraints we compare to existing bounds from a variety of and nuclear tests of parity nonconservation.

Loading

Article metrics loading...

/content/journals/10.1146/annurev.nucl.51.101701.132458
2001-12-01
2024-06-22
Loading full text...

Full text loading...

/content/journals/10.1146/annurev.nucl.51.101701.132458
Loading
/content/journals/10.1146/annurev.nucl.51.101701.132458
Loading

Data & Media loading...

  • Article Type: Review Article
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error