Fission in the landscape of heaviest elements: Some recent examples

Khuyagbaatar, J.; Yakushev, A.; Düllmann, Ch.E.; Ackermann, D.; Andersson, L.-L.; Block, M.; Brand, H.; Even, J.; Forsberg, U.; Hartmann, W.; Herzberg, R.-D.; Heßberger, F.P.; Hoffmann, J.; Hübner, A.; Jäger, E.; Jeppsson, J.; Kindler, B.; Kratz, J.V.; Krier, J.; Kurz, N.; Lommel, B.; Maiti, M.; Minami, S.; Rudolph, D.; Runke, J.; Sarmiento, L.G.; Schädel, M.; Schausten, B.; Steiner, J.; De Heidenreich, T. Torres; Uusitalo, Juha; Wiehl, N.; Yakusheva, V.

doi:10.1051/epjconf/201613103003

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Khuyagbaatar, J., Yakushev, A., Düllmann, Ch.E., Ackermann, D., Andersson, L.-L., Block, M., Brand, H., Even, J., Forsberg, U., Hartmann, W., Herzberg, R.-D., Heßberger, F.P., Hoffmann, J., Hübner, A., Jäger, E., Jeppsson, J., Kindler, B., Kratz, J.V., Krier, J., . . . Yakusheva, V. (2016). Fission in the landscape of heaviest elements: Some recent examples. In D. Rudolph (Ed.), Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements (Article 03003). EDP Sciences. EPJ Web of Conferences, 131. https://doi.org/10.1051/epjconf/201613103003

Päivämäärä

2016

Oppiaine

Kiihdytinlaboratorio Accelerator Laboratory

Tekijänoikeudet

The fission process still remains a main factor that determines the stability of the atomic nucleus of heaviest elements. Fission half-lives vary over a wide range, 10−19−1024 s. Present experimental techniques for the synthesis of the superheavy elements that usually measure -decay chains are sensitive only in a limited range of half-lives, often 10−5−103 s. In the past years, measurement techniques for very short-lived and very longlived nuclei were significantly improved at the gas-filled recoil separator TASCA at GSI Darmstadt. Recently, several experimental studies of fissionrelated phenomena have successfully been performed. In this paper, results on 254−256Rf and 266Lr are presented and corresponding factors for retarding the fission process are discussed.

Julkaisija

EDP Sciences

ISBN

978-2-7598-9011-8

Emojulkaisun ISBN

Konferenssi

Nobel Symposium

Kuuluu julkaisuun

Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements

ISSN Hae Julkaisufoorumista

2100-014X

Asiasanat

superheavy elements nuclear stability fission

DOI

https://doi.org/10.1051/epjconf/201613103003

URI

http://urn.fi/URN:NBN:fi:jyu-201612054944

Julkaisu tutkimustietojärjestelmässä

https://converis.jyu.fi/converis/portal/detail/Publication/26358940

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Stability and synthesis of superheavy elements: Fighting the battle against fission – example of 254No

Lopez-Martens, A.; Henning, G.; Khoo, T.L.; Seweryniak, D.; Alcorta, M.; Asai, M.; Back, B.B.; Bertone, P.; Boilley, D.; Carpenter, M.P.; Chiara, C.J.; Chowdhury, P.; Gall, B.; Greenlees, Paul; Gurdal, G.; Hauschild, K.; Heinz, A.; Hoffman, C.R.; Janssens, R.V.F.; Karpov, A.V.; Kay, B.P.; Kondev, F.G.; Lakshmi, S.; Lauristen, T.; Lister, C.J.; McCutchan, E.A.; Nair, C.; Piot, J.; Potterveld, D.; Reiter, P.; Rowley, N.; Rogers, A.M.; Zhu, S. (EDP Sciences, 2016)

Superheavy nuclei exist solely due to quantum shell effects, which create a pocket in the potential-energy surface of the nucleus, thus providing a barrier against spontaneous fission. Determining the height of the ...
Stability of the heaviest elements : K isomer in 250No

Kallunkathariyil, J.; Sulignano, B.; Greenlees, P. T.; Khuyagbaatar, J.; Theisen, Ch.; Auranen, K.; Badran, H.; Bisso, F.; Brionnet, P.; Briselet, R.; Drouart, A.; Favier, Z.; Goigoux, T.; Grahn, T.; Hauschild, K.; Herzan, A.; Heßberger, F. P.; Jakobsson, U.; Julin, R.; Juutinen, S.; Konki, J.; Leino, M.; Lightfoot, A.; Pakarinen, J.; Papadakis, P.; Partanen, J.; Peura, P.; Rahkila, P.; Rezynkina, K.; Ruotsalainen, P.; Sandzelius, M.; Saren, J.; Scholey, C.; Siciliano, M.; Sorri, J.; Stolze, S.; Svirikhin, A. I.; Uusitalo, J.; Vandebrouck, M.; Ward, A.; Wraith, C.; Zielińska, M. (American Physical Society, 2020)

Decay spectroscopy of 250No has been performed using digital electronics and pulse-shape analysis of the fast nuclear decays for the first time. Previous studies of 250No reported two distinct fission decay lifetimes, related ...
Production and properties towards the island of stability

Leino, Matti (EDP Sciences, 2016)

The structure of the nuclei of the heaviest elements is discussed with emphasis on single-particle properties as determined by decay and inbeam spectroscopy. The basic features of production of these nuclei using fusion ...
On the adsorption and reactivity of element 114, flerovium

Yakushev, A.; Lens, L.; Düllmann, Ch. E.; Khuyagbaatar, J.; Jäger, E.; Krier, J.; Runke, J.; Albers, H. M., Asai, M.; Block, M.; Despotopulos, J.; Di Nitto, A.; Eberhardt, K.; Forsberg, U.; Golubev, P.; Götz, M.; Götz, S.; Haba, H.; Harkness-Brennan, L.; Herzberg, R.-D.; Heßberger, F. P.; Hinde, D.; Hübner, A.; Judson, D.; Kindler, B.; Komori, Y.; Konki, J.; Kratz, J.V.; Kurz, N.; Laatiaoui, M.; Lahiri, S.; Lommel, B.; Maiti, M.; Mistry, A. K.; Mokry, Ch.; Moody, K. J.; Nagame, Y.; Omtvedt, J. P.; Papadakis, P.; Pershina, V.; Rudolph, D.; Samiento, L.G.; Sato, T.K.; Schädel, M.; Scharrer, P.; Schausten, B.; Shaughnessy, D. A.; Steiner, J.; Thörle-Pospiech, P.; Toyoshima, A.; Trautmann, N.; Tsukada, K.; Uusitalo, J.; Voss, K.-O.; Ward, A.; Wegrzecki, M.; Wiehl, N.; Williams, E.; Yakusheva, V. (Frontiers Media, 2022)

Flerovium (Fl, element 114) is the heaviest element chemically studied so far. To date, its interaction with gold was investigated in two gas-solid chromatography experiments, which reported two different types of interaction, ...
Exploring the stability of super heavy elements: First Measurement of the Fission Barrier of 254No

Henning, G.; Lopez-Martens, A.; Khoo, T.L.; Seweryniak, D.; Alcorta, M.; Asai, M.; Back, B. B.; Bertone, P.; Boilley, D.; Carpenter, M. P.; Chiara, C. J.; Chowdhury, P.; Gall, B.; Greenlees, Paul; Gurdal, G.; Hauschild, K.; Heinz, A.; Hoffman, C. R.; Janssens, R. V. F.; Karpov, A. V.; Kay, B. P.; Kondev, F. G.; Lakshmi, S.; Lauristen, T.; Lister, C. J.; McCutchan, E. A.; Nair, C.; Piot, J.; Potterveld, D.; Reiter, P.; Rowley, N.; Rogers, A. M.; Zhu, S. (EDP Sciences, 2014)

Abstract. The gamma-ray multiplicity and total energy emitted by the heavy nucleus 254 No have been measured at 2 di erent beam energies. From these measurements, the initial distributions of spin I and excitation ...