Evidence for collectivity in the light Po isotopes: The {alpha}-decay of {sup 190}Po
- Oak Ridge Associated Univ., TN (United States)
The {alpha}-decay properties of {sup 190}Po were investigated through the use of a fragment mass analyzer in conjunction with a double-sided Si strip detector. The isotope was produced via the {sup 96}Mo({sup 96}Mo,2n) reaction, and its {alpha}-decay energy and T{sub {1/2}} were measured as 7529(15) keV and 2.4{sub -0.3} {sup +0.4} ms respectively. The resulting reduced width is nearly identical to that of the {sup 192,194}Po isotopes. This is believed to result from significant mixing between the ground state {pi}(2p) and the low-lying O{sup +} {pi}(4p-2h) intruder state in the Po parent. This provides further evidence for collectivity in the light Po isotopes. In addition, {sup 191}Po was unambiguously identified and the {sup 186}Pb {alpha}-decay branch was determined experimentally for the first time.
- DOE Contract Number:
- AC05-76OR00033
- OSTI ID:
- 560245
- Report Number(s):
- CONF-970443-; TRN: 97:005895-0212
- Resource Relation:
- Conference: 213. national meeting of the American Chemical Society, San Francisco, CA (United States), 13-17 Apr 1997; Other Information: PBD: 1997; Related Information: Is Part Of 213th ACS national meeting; PB: 2904 p.
- Country of Publication:
- United States
- Language:
- English
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