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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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    "doi": "10.1103/physrevlett.83.1104", 
    "description": "Following a prediction by Smola\u0144czuk [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 \u03b1 decays, correlated in time and position. In these decay chains, a rapid (ms) sequence of high energy \u03b1 particles ( E\u03b1\u226510MeV) indicates the decay of a new high- Z element. The observed chains are consistent with the formation of 129318 and its decay by sequential \u03b1-particle emission to 128916, 128514, 128112, 127710, 273Hs ( Z=108) and 269Sg ( Z=106). The production cross section is 2.2\u22120.8+2.6pb.", 
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    "title": "Observation of Superheavy Nuclei Produced in the Reaction of K 86 r with P 208 b", 
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    "publication_date": "1999-08-09", 
    "creators": [
      {
        "name": "Ninov, V."
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      {
        "name": "Gregorich, K. E."
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      {
        "name": "Loveland, W."
      }, 
      {
        "name": "Ghiorso, A."
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      {
        "name": "Hoffman, D. C."
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      {
        "name": "Lee, D. M."
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        "name": "Nitsche, H."
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        "name": "Swiatecki, W. J."
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        "name": "Kirbach, U. W."
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      {
        "name": "Laue, C. A."
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      {
        "name": "Adams, J. L."
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      {
        "name": "Patin, J. B."
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      {
        "name": "Shaughnessy, D. A."
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        "name": "Strellis, D. A."
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