期刊
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
卷 37, 期 3, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0954-3899/37/3/035102
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资金
- FWO-Vlaanderen (Belgium) [GOA/2004/03]
- 'Interuniversity Attraction Poles Programme-Belgian State Belgian Science Policy' [P6/23]
- European Commission [RII3-CT-2004-506065]
- UK Science and Technology Facilities Council
- Slovak Research and Development Agency [APVV-20-006205]
- Science and Technology Facilities Council [ST/H009035/1, ST/I002723/1, ST/F012039/1, ST/G008671/1, EP/C015266/1] Funding Source: researchfish
- STFC [EP/C015266/1, ST/G008671/1, ST/H009035/1, ST/F012039/1, ST/I002723/1] Funding Source: UKRI
The new isotope Pb-179 has been produced in the complete fusion reaction Ca-40+Sm-144 -> Pb-179+5n at the velocity filter SHIP (GSI). Its alpha-decay energy of 7350(20) keV and half-life value of 3.5(-0.8)(+1.4) ms were deduced based on the recoil-alpha-alpha correlation technique. A spin parity of I-pi = (9/2(-)) was tentatively assigned to the ground state of Pb-179; thus, it is based on the 1h(9/2) orbital. Improved measurements of the alpha-decay properties of Tl-179(m) and Au-175(m) are also presented.
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