Journal article Open Access

Observation of Superheavy Nuclei Produced in the Reaction of K 86 r with P 208 b

Ninov, V.; Gregorich, K. E.; Loveland, W.; Ghiorso, A.; Hoffman, D. C.; Lee, D. M.; Nitsche, H.; Swiatecki, W. J.; Kirbach, U. W.; Laue, C. A.; Adams, J. L.; Patin, J. B.; Shaughnessy, D. A.; Strellis, D. A.; Wilk, P. A.

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      <creatorName>Ninov, V.</creatorName>
      <creatorName>Gregorich, K. E.</creatorName>
      <givenName>K. E.</givenName>
      <creatorName>Loveland, W.</creatorName>
      <creatorName>Ghiorso, A.</creatorName>
      <creatorName>Hoffman, D. C.</creatorName>
      <givenName>D. C.</givenName>
      <creatorName>Lee, D. M.</creatorName>
      <givenName>D. M.</givenName>
      <creatorName>Nitsche, H.</creatorName>
      <creatorName>Swiatecki, W. J.</creatorName>
      <givenName>W. J.</givenName>
      <creatorName>Kirbach, U. W.</creatorName>
      <givenName>U. W.</givenName>
      <creatorName>Laue, C. A.</creatorName>
      <givenName>C. A.</givenName>
      <creatorName>Adams, J. L.</creatorName>
      <givenName>J. L.</givenName>
      <creatorName>Patin, J. B.</creatorName>
      <givenName>J. B.</givenName>
      <creatorName>Shaughnessy, D. A.</creatorName>
      <givenName>D. A.</givenName>
      <creatorName>Strellis, D. A.</creatorName>
      <givenName>D. A.</givenName>
      <creatorName>Wilk, P. A.</creatorName>
      <givenName>P. A.</givenName>
    <title>Observation of Superheavy Nuclei Produced in the Reaction of K 86 r with P 208 b</title>
    <date dateType="Issued">1999-08-09</date>
  <resourceType resourceTypeGeneral="JournalArticle"/>
    <alternateIdentifier alternateIdentifierType="url"></alternateIdentifier>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1103/physrevlett.83.1104</relatedIdentifier>
    <rights rightsURI="">Creative Commons Zero v1.0 Universal</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
    <description descriptionType="Abstract">Following a prediction by Smolańczuk [Phys. Rev. C 59, 2634 (1999)], we searched for superheavy element formation in the bombardment of 208Pb with 449-MeV 86Kr ions. We have observed three decay chains, each consisting of an implanted heavy atom and six subsequent α decays, correlated in time and position. In these decay chains, a rapid (ms) sequence of high energy α particles ( Eα≥10MeV) indicates the decay of a new high- Z element. The observed chains are consistent with the formation of 129318 and its decay by sequential α-particle emission to 128916, 128514, 128112, 127710, 273Hs ( Z=108) and 269Sg ( Z=106). The production cross section is 2.2−0.8+2.6pb.</description>
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