Physics Letters B (Mar 2024)
α-decay properties of new neutron-deficient isotope 203Ac
- J.G. Wang,
- Z.G. Gan,
- Z.Y. Zhang,
- M.H. Huang,
- L. Ma,
- M.M. Zhang,
- H.B. Yang,
- C.L. Yang,
- Y.H. Qiang,
- X.Y. Huang,
- Z. Zhao,
- S.Y. Xu,
- Z.C. Li,
- L.X. Chen,
- L.C. Sun,
- H. Zhou,
- X. Zhang,
- X.L. Wu,
- Y.L. Tian,
- Y.S. Wang,
- J.Y. Wang,
- W.X. Huang,
- M.L. Liu,
- Z.W. Lu,
- Y. He,
- Z.Z. Ren,
- S.G. Zhou,
- X.H. Zhou,
- H.S. Xu,
- V.K. Utyonkov,
- A.A. Voinov,
- Yu.S. Tsyganov,
- A.N. Polyakov
Affiliations
- J.G. Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Z.G. Gan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China; Corresponding author at: Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
- Z.Y. Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- M.H. Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- L. Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
- M.M. Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- H.B. Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- C.L. Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Y.H. Qiang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- X.Y. Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Z. Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- S.Y. Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Z.C. Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- L.X. Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
- L.C. Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
- H. Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
- X. Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
- X.L. Wu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
- Y.L. Tian
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
- Y.S. Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
- J.Y. Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
- W.X. Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- M.L. Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Z.W. Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Y. He
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Z.Z. Ren
- School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
- S.G. Zhou
- CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China; Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China
- X.H. Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- H.S. Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- V.K. Utyonkov
- Joint Institute for Nuclear Research, RU-141980 Dubna, Russian Federation
- A.A. Voinov
- Joint Institute for Nuclear Research, RU-141980 Dubna, Russian Federation
- Yu.S. Tsyganov
- Joint Institute for Nuclear Research, RU-141980 Dubna, Russian Federation
- A.N. Polyakov
- Joint Institute for Nuclear Research, RU-141980 Dubna, Russian Federation
- Journal volume & issue
-
Vol. 850
p. 138503
Abstract
A new isotope 203Ac was produced in the reaction 40Ca + 169Tm at beam energy of 226 MeV. One correlated α-decay chain was attributed to 203Ac. The α-particle energy and half-life were determined to be 8217(16) keV and 56−26+269 μs, respectively. The reduced α-decay width (δ2) of 203Ac was deduced to be 1096−906+921 keV, which indicates a favored α decay. The systematics of δ2 and single-particle energy levels indicate that the new state probably arises from the intruder s1/2 configuration, which shows an onset of deformation in Ac isotopes. The proton separation energy Sp of 203Ac was extracted as −1214(22) keV and the systematics of Sp for odd-A isotopes beyond proton drip line were discussed.
