Abstract
Multiconfiguration Dirac-Fock models have been employed to compute the electric field gradient in the ground state of the neutral bismuth atom. Combined with the experimental electric quadrupole hyperfine interaction constant, one obtains for the nuclear quadrupole moment , which is almost away from the previously accepted standard value [ ], and narrows by over an order of magnitude the long-standing, extremely broad array of various results ranging from to . The recent values of by Pearson et al. suffer a consequent change.
- Received 20 July 2001
DOI:https://doi.org/10.1103/PhysRevLett.87.133003
©2001 American Physical Society