Microscopic Description of Alpha Decay to Intruder 0{sup +}{sub 2} States in Pb, Po, Hg, and Pt Isotopes

Journal Article · Mon May 15 00:00:00 EDT 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.74.3939· OSTI ID:55278

Delion, D S; Florescu, A ^[1]; Huyse, M; Wauters, J ^[2]; Van Duppen, P ^[3]; Insolia, A ^[4]; Liotta, R J ^[5]

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1. Institute of Atomic Physics, Bucharest Magurele, POB MG 6 (Romania)
2. Leuven Isotope Separation On-Line, Instituut voor Kern- en Stralingsfysika, and Katholieke Universiteit Leuven, Celestijnenlaan 200 D, B-3001 Leuven (Belgium)
3. CERN, CH-1211 Geneva 23 (Switzerland)
4. Department of Physics, University of Catania and Istituto Nazionale di Fisica Nucleare, I-95129 Cantania (Italy)
5. Royal Institute of Technology at Frescati, S-10405 Stockholm (Sweden)

A microscopic description of the {alpha} decay to intruder 0{sup +}{sub 2} states of Pb isotopes in terms of proton-neutron pairing vibrations is performed. The calculated hindrance factors with respect to {alpha} transitions into the ground state are in good agreement with the available experimental data. Predictions for further measurements are given. Hindrance factors corresponding to the decay towards Po, Hg, and Pt isotopes are calculated within a simple model. The calculated quantities agree well with the experimental data, indicating that {alpha} decay is a powerful tool to precisely determine the transition from spherical to deformed shapes in the region around {ital Z}=82.

• OSTI ID: 55278
• Journal Information: Physical Review Letters, Vol. 74, Issue 20; Other Information: PBD: 15 May 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALPHA DECAY
LEAD ISOTOPES
POLONIUM ISOTOPES
MERCURY ISOTOPES
PLATINUM ISOTOPES
GROUND STATES
PROTON-NEUTRON INTERACTIONS
PAIRING INTERACTIONS
VIBRATIONAL STATES
EXCITATION