Nuclear-spin-dependent weak-interaction effects in atoms
This thesis analyzes alternative ways of studying weak-interaction effects in atoms. The traditional path has been to investigate nuclear-spin-independent weak forces in heavy atoms in the presence of static electric fields. These have concentrated on optical transitions between excited states, which are enhanced by a factor Z/sup 3/. Results from calculations of two alternative parity-nonconserving effects in the ground states of heavy atoms are presented here. In the first case, a weak induced dipole moment connecting the hyperfine substrates in the ground states of alkali-like atoms and ions was calculated. The nuclear-spin-dependent interaction is enhanced by a factor of Z/sup 2/. However, it is contended that the longer coherence time of ground states makes parity experiments more sensitive than corresponding experiments on excited states and will permit a better comparison of theory and experiment. The calculations were carried out using single particle potentials with the Sternheimer method. In the second case, a mixed polarizability of the ground states, proportional to both static electric and magnetic fields was calculated. This effect is induced by the nuclear-spin-independent weak interaction and was also calculated using both the nonrelativistic and relativistic Sternheimer methods with the same central potentials.
- Research Organization:
- Michigan Univ., Ann Arbor (USA)
- OSTI ID:
- 6934298
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ATOMS
NUCLEAR FORCES
WEAK INTERACTIONS
SPIN
STERNHEIMER FORMULA
ANGULAR MOMENTUM
BASIC INTERACTIONS
INTERACTIONS
PARTICLE PROPERTIES
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory
653001 - Nuclear Theory- Nuclear Structure
Moments
Spin
& Models