α decay of the new isotopes Rn193,194

A. N. Andreyev, S. Antalic, M. Huyse, P. Van Duppen, D. Ackermann, L. Bianco, D. M. Cullen, I. G. Darby, S. Franchoo, S. Heinz, F. P. Heßberger, S. Hofmann, I. Kojouharov, B. Kindler, A. P. Leppänen, B. Lommel, R. Mann, G. Münzenberg, J. Pakarinen, R. D. PageJ. J. Ressler, S. Saro, B. Streicher, B. Sulignano, J. Thomson, R. Wyss

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The new neutron-deficient isotopes Rn193,194 have been identified in the complete fusion reaction Cr52+Sm144→Rn196* at the velocity filter SHIP. The α-decay energy and half-life value of Rn194 were determined to be Eα=7700(10) keV and T1/2=0.78(16) ms, respectively. For Rn193 the half-life of T1/2=1.15(27) ms and two α lines at Eα1=7685(15) keV, Iα1=74(20)% and Eα2=7875(20) keV, Iα2=26(12)% were found. The decay pattern of Rn193, which is substantially different from that of the heavier odd-A Rn isotopes, provides first experimental evidence for the long-predicted deformation in the very neutron-deficient Rn nuclei. © 2006 The American Physical Society.
    Original languageEnglish
    Article number064303
    JournalPhysical Review C - Nuclear Physics
    Volume74
    Issue number6
    DOIs
    Publication statusPublished - 2006

    Keywords

    • INTRUDER STATES
    • GAMMA-DECAY
    • PO ISOTOPES
    • SPECTROSCOPY
    • NUCLEI
    • PRODUCTS
    • PB-185
    • SHIP

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