Early onset of deformation in the neutron-deficient polonium isotopes

• In-source laser spectroscopy has been performed at CERN-ISOLDE with the RILIS laser ion source on 191-204,206,208-211,216,218Po. New information on the β decay of 199Po were extracted in the process, challenging previous results. Large-scale atomic calculations were performed to extract the changes in the mean-square charge radius δr 2 from the isotope shifts. The δ«r» 2 for the even-A isotopes reveal a large deviation from the spherical droplet model for N < 116.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Keyword

Atomic calculations

Charge radius

Isotope shifts

Large deviations

Laser ion sources

Mean-square

Spherical droplets

Ion sources

Laser spectroscopy

Nuclear physics

Isotopes

Publication and Content Type

ref (subject category)

art (subject category)