New Short-Lived Isotope 221U and the Mass Surface Near N=126
Khuyagbaatar, J.;Yakushev, A.;Düllmann, Ch. E.;Ackermann, D.;Andersson, L.-L.;Block, M.;Brand, H.;Cox, D. M.;Even, J. andForsberg, UlrikaLU, et al. (2015) InPhysical Review Letters115(24).- Abstract
- Two short-lived isotopes 221U and 222U were produced as evaporation residues in the fusion reaction 50Ti+176Yb at the gas-filled recoil separator TASCA. An α decay with an energy of Eα=9.31(5) MeV and half-life T1/2=4.7(7) μs was attributed to 222U. The new isotope 221U was identified in α-decay chains starting with Eα=9.71(5) MeV and T1/2=0.66(14) μs leading to known daughters. Synthesis and detection of these unstable heavy nuclei and their descendants were achieved thanks to a fast data readout system. The evolution of the N=126 shell closure and its influence on the stability of uranium isotopes are discussed within the framework of α-decay reduced width.
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Please use this url to cite or link to this publication:https://lup.lub.lu.se/record/8311218
- author
- Khuyagbaatar, J.;Yakushev, A.;Düllmann, Ch. E.;Ackermann, D.;Andersson, L.-L.;Block, M.;Brand, H.;Cox, D. M.;Even, J. andForsberg, UlrikaLU, et al.(More)
- Khuyagbaatar, J.;Yakushev, A.;Düllmann, Ch. E.;Ackermann, D.;Andersson, L.-L.;Block, M.;Brand, H.;Cox, D. M.;Even, J.;Forsberg, UlrikaLU;Golubev, PavelLU;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.;Mistry, A. K.;Mrosek, Ch. M.;Pysmenetska, I.;Rudolph, DirkLU
;Sarmiento, LuisLU;Schaffner, H.;Schädel, M.;Schausten, B.;Steiner, J.;De Heidenreich, T. Torres;Uusitalo, J.;Wegrzecki, M.;Wiehl, N. andYakusheva, V.(Less) - organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Heavy Elements,Shell Structure,Sampling Electronics
- in
- Physical Review Letters
- volume
- 115
- issue
- 24
- article number
- 242502
- pages
- 4 pages
- publisher
- American Physical Society
- external identifiers
- pmid:26705628
- wos:000366107500004
- scopus:84949671163
- pmid:26705628
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.115.242502
- project
- Nuclear Structure at the Limits: Isotope-selective Spectroscopy
- language
- English
- LU publication?
- yes
- id
- c55c19a8-f00b-49fc-9cf1-7dcd56090715 (old id 8311218)
- date added to LUP
- 2016-04-01 10:16:41
- date last changed
- 2025-01-14 10:41:53
@article{c55c19a8-f00b-49fc-9cf1-7dcd56090715, abstract = {{Two short-lived isotopes 221U and 222U were produced as evaporation residues in the fusion reaction 50Ti+176Yb at the gas-filled recoil separator TASCA. An α decay with an energy of Eα=9.31(5) MeV and half-life T1/2=4.7(7) μs was attributed to 222U. The new isotope 221U was identified in α-decay chains starting with Eα=9.71(5) MeV and T1/2=0.66(14) μs leading to known daughters. Synthesis and detection of these unstable heavy nuclei and their descendants were achieved thanks to a fast data readout system. The evolution of the N=126 shell closure and its influence on the stability of uranium isotopes are discussed within the framework of α-decay reduced width.}}, author = {{Khuyagbaatar, J. and Yakushev, A. and Düllmann, Ch. E. and Ackermann, D. and Andersson, L.-L. and Block, M. and Brand, H. and Cox, D. M. and Even, J. and Forsberg, Ulrika and Golubev, Pavel and Hartmann, W. and Herzberg, R.-D. and Heßberger, F. P. and Hoffmann, J. and Hübner, A. and Jäger, E. and Jeppsson, J. and Kindler, B. and Kratz, J. V. and Krier, J. and Kurz, N. and Lommel, B. and Maiti, M. and Minami, S. and Mistry, A. K. and Mrosek, Ch. M. and Pysmenetska, I. and Rudolph, Dirk and Sarmiento, Luis and Schaffner, H. and Schädel, M. and Schausten, B. and Steiner, J. and De Heidenreich, T. Torres and Uusitalo, J. and Wegrzecki, M. and Wiehl, N. and Yakusheva, V.}}, issn = {{1079-7114}}, keywords = {{Heavy Elements; Shell Structure; Sampling Electronics}}, language = {{eng}}, number = {{24}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{New Short-Lived Isotope 221U and the Mass Surface Near N=126}}, url = {{https://lup.lub.lu.se/search/files/1709105/8311259.pdf}}, doi = {{10.1103/PhysRevLett.115.242502}}, volume = {{115}}, year = {{2015}},}