Shape transition in neutron deficient Pt isotopes

• Published in: Physics letters. B Vol. 217; no. 4; pp. 401 - 405
• Main Authors: Duong, H.T., Pinard, J., Liberman, S., Savard, G., Lee, J.K.P., Crawford, J.E., Thekkadath, G., Le Blanc, F., Kilcher, P., Obert, J., Oms, J., Putaux, J.C., Roussière, B., Sauvage, J.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 02.02.1989; Elsevier
• Subjects: Nuclear Experiment; Physics
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/0370-2693(89)90068-3

Isotope shift (IS) and hyperfine structure (HFS) measurements have been performed for 185,187,189,191,195Pt using the PILIS (Post ISOCELE Laser Isobar Separation) apparatus installed at the ISOCELE facility. Magnetic and quadrupole moments have been deduced from the HFS results. The change radius changes determined for these odd nuclei from the IS results, added to the δ < r 2 > values of the even- A nuclei, are compared to the results of lattice Hartee-Fock+BCS calculations for asymmetric solutions. 185Pt is confirmed to be prolate shaped whereas 187,189,191Pt are likely triaxial in their ground states.