{alpha} decay of {sup 273}110: Shell closure at {ital N}=162
- Joint Institute for Nuclear Research, 141980 Dubna (Russian Federation)
- University of California, Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
In bombardments of {sup 244}Pu with {sup 34}S we discovered the {alpha}-decaying nuclide {sup 273}110. We conducted an extensive off-line search of the raw data for event sequences which fit the expected pattern of implantation in a position-sensitive detector and subsequent decay of {sup 273}110 and its descendants. We observed one three-member sequence of genetically linked {alpha} decays, resulting in {ital E}{sub {alpha}}=11.35 MeV, a half-life of 0.3{sub {minus}0.2}{sup +1.3} ms, and a production cross section of about 0.4 pb for {sup 273}110. Other possible {sup 273}110 event chains were also observed. The measured {alpha}-particle energy for the {ital N}=163 nuclide {sup 273}110 provides direct evidence for a neutron shell closure at {ital N}=162. {copyright} {ital 1996 The American Physical Society.}
- Research Organization:
- Lawrence Livermore National Laboratory
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 286804
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 54; ISSN PRVCAN; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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