Published May 20, 1996 | Version v1
Journal article

Measurements of the spectroscopic quadrupole moments of the 11/2- isomers 193mAu, 195mAu and 197mAu with MAPON

  • 1. Technische Univ. Muenchen, Garching (Germany). Physik-Department
  • 2. PPE Division, CERN, CH-1211 Geneva 23 (Switzerland)

Description

With measurements of modulated adiabatic passage on oriented nuclei (MAPON) of the 11/2- isomers 193mAu (T1/2=3.9 s), 195mAu (T1/2=30.6 s) and 197mAu (T1/2=7.7 s) in hcp-Co, the electric quadrupole splitting frequencies eQVzz/h were determined to be -46.82(11), -44.29(11) and -39.78(11) MHz for 193mAu, 195mAu and 197mAu, respectively. With the known electric field gradient of Au in hcp-Co, eq=-0.977(29) x 1017 V/cm2, the spectroscopic quadrupole moments are deduced to be Q(193mAu)=+1.98(6) b, Q(195mAu)=+1.87(6) b and Q(197mAu)=+1.68(5) b. Theoretical quadrupole moments calculated within the asymmetric rotor model are in moderate agreement with the experimental values. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Physics. A
Journal Volume
602
Journal Issue
1
Journal Page Range
p. 41-59.
ISSN
0375-9474
CODEN
NUPABL

Optional Information

Collaborations
ISOLDE Collaboration.