Alpha-Photon Coincidence Spectroscopy Along Element 115 Decay Chains

Dirk Rudolph, Ulrika Forsberg, Pavel Golubev, Luis Sarmiento, A. Yakushev, L.-L. Andersson, A. Di Nitto, Ch.E. Düllmann, J.M. Gates, K.E. Gregorich, C.J. Gross, R.-D. Herzberg, F.P. Heßberger, J. Khuyagbaatar, J.V. Kratz, K. Rykaczewski, M. Schädel, Sven Åberg, D. Ackermann, M. BlockH. Brand, Gillis Carlsson, D. Cox, X. Derkx, K. Eberhardt, J. Even, Claes Fahlander, J. Gerl, E. Jäger, B. Kindler, J. Krier, I. Kojouharov, N. Kurz, B. Lommel, A. Mistry, C. Mokry, H. Nitsche, J.P. Omtvedt, P. Papadakis, Ingemar Ragnarsson, J. Runke, H. Schaffner, B. Schausten, P. Thörle-Pospiech, T. Torres, T. Traut, N. Trautmann, A. Türler, A. Ward, Daniel Ward, N. Wiehl

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Abstract

Produced in the reaction 48Ca+243Am, thirty correlated α-decay chains were observed in an experiment conducted at the GSI Helmholzzentrum für Schwerionenforschung, Darmstadt, Germany. The decay chains are basically consistent with previous findings and are considered to originate from isotopes of element 115 with mass numbers 287, 288, and 289. A set-up aiming specifically for high-resolution charged particle and photon coincidence spectroscopy was placed behind the gas-filled separator TASCA. For the first time, γ rays as well as X-ray candidates were observed in prompt coincidence with the α-decay chains of element 115.

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002), Nuclear Physics (Faculty of Science) (011013004)

Subject classification (UKÄ)

  • Physical Sciences
  • Subatomic Physics

Free keywords

  • superheavy elements
  • element 115
  • alpha decay
  • gamma-ray spectroscopy

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  • Element 115

    Forsberg, U., 2016, Lund: Lund University, Faculty of Science, Division of Nuclear Physics. 171 p.

    Research output: ThesisDoctoral Thesis (compilation)

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  • Spectroscopy of Element 115 Decay Chains

    Rudolph, D., Forsberg, U., Golubev, P., Sarmiento, L., Yakushev, A., Andersson, L.-L., Di Nitto, A., Düllmann, C. E., Gates, J. M., Gregorich, K. E., Gross, C. J., Heßberger, F. P., Herzberg, R.-D., Khuyagbaatar, J., Kratz, J. V., Rykaczewski, K., Schädel, M., Åberg, S., Ackermann, D. & Block, M. & 31 others, Brand, H., Carlsson, G., Cox, D., Derkx, X., Eberhardt, K., Even, J., Fahlander, C., Gerl, J., Jäger, E., Kindler, B., Krier, J., Kojouharov, I., Kurz, N., Lommel, B., Mistry, A., Mokry, C., Nitsche, H., Omtvedt, J. P., Papadakis, P., Ragnarsson, I., Runke, J., Schaffner, H., Schausten, B., Thörle-Pospiech, P., Torres, T., Traut, T., Trautmann, N., Türler, A., Ward, A., Ward, D. & Wiehl, N., 2013, In: Physical Review Letters. 111, 11, 112502.

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