Observation of Low-Lying <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>J</mi></mrow><mrow><mi>π</mi></mrow></msup></mrow><mo>=</mo><mrow><msup><mrow><mn>0</mn></mrow><mrow><mo>+</mo></mrow></msup></mrow></math></span> States in the Single-Closed-Shell Nuclei <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Pb</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>1</mn><mn>9</mn><mn>2</mn><mo>−</mo><mn>1</mn><mn>9</mn><mn>8</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

P. Van Duppen; E. Coenen; K. Deneffe; M. Huyse; K. Heyde; P. Van Isacker

doi:10.1103/PhysRevLett.52.1974

Observation of Low-Lying $J^{π} = 0^{+}$ States in the Single-Closed-Shell Nuclei ${}^{192 - 198}{Pb}$

P. Van Duppen, E. Coenen, K. Deneffe, M. Huyse, K. Heyde, and P. Van Isacker

Phys. Rev. Lett. 52, 1974 – Published 28 May 1984

Abstract

First experimental evidence for a low-lying $J^{π} = 0^{+}$ excited state in ${}^{192 - 198}{Pb}$ is obtained by study of the $β$ decay of mass-separated Bi isotopes. It is shown that such excited states correspond to deformed two-particle, two-hole configurations.