{alpha}-decay properties of {sup 190}Po and the identification of {sup 191}Po
- UNIRIB, Oak Ridge Associated Universities, Oak Ridge, Tennessee 37831 (United States)
- Louisiana State University, Baton Rouge, Louisiana 70803 (United States)
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
- University of Tennessee, Knoxville, Tennessee 37996 (United States)
- Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Vanderbilt University, Nashville, Tennessee 37235 (United States)
- University of Maryland, College Park, Maryland 20742 (United States)
- Georgia Institute of Technology, Atlanta, Georgia 30332 (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(10) keV and 2.4{sub {minus}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 0{sup +}{pi}(4p-2h) intruder state in the Po parent. The result provides further evidence for shape coexistence 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. {copyright} {ital 1997} {ital The American Physical Society}
- Research Organization:
- Oak Ridge Institute of Science and Education
- DOE Contract Number:
- AC05-76OR00033; AC05-96OR22464; FG02-96ER40978; FG02-96ER40983; FG05-87ER40330; FG05-88ER40418; W-31109-ENG-38
- OSTI ID:
- 496902
- Journal Information:
- Physical Review, C, Vol. 55, Issue 5; Other Information: PBD: May 1997
- Country of Publication:
- United States
- Language:
- English
Similar Records
Alpha decay of the h{sub 9/2} ground and s{sub 1/2} intruder states in light Bi and at isotopes
Alpha decay of the h[sub 9/2] ground and s[sub 1/2] intruder states in light Bi and at isotopes