Investigation into the effects of deformation on proton emission rates via lifetime measurements

M.J. Taylor, D.M. Cullen, M.G. Procter, A.J. Smith, A. McFarlane, V. Twist, G.A. Alharshan, T. Grahn, P.T. Greenlees, K. Auranen, K. Hauschild, A. Herzan, U. Jakobsson, P.M. Jones, R. Julin, S. Juutinen, S. Ketelhut, J. Konki, M. Leino, A. Lopez-MartensP. Nieminen, J. Pakarinen, J. Partanen, P. Peura, P. Rahkila, S. Rinta-Antila, P. Ruotsalainen, M. Sandzelius, J. Sarén, C. Scholey, J. Sorri, S. Stolze, J. Uusitalo, L.S. Ferreira, E. Maglione, P.A. Butler, M. Scheck, D.T. Joss, B. Sahgi, C. McPeake, T. Braunroth, A. Dewald, C. Fransen, E. Ellinger

Research output: Chapter in Book/Report/Conference proceedingConference contribution

22 Citations (Scopus)

Abstract

Excited states in the proton-unbound nucleus 151Lu have been established using γ-ray coincidence techniques. The lifetime of the first excited state above the proton-emitting ground state has been measured using the recoil-distance Doppler-shift method combined with recoil-decay tagging. The experimental level scheme and extracted lifetime have been compared with state-of-the-art theoretical calculations based upon a non-adiabatic deformed Woods–Saxon potential. This comparison suggests that the proton-emitting ground state in 151Lu is mildly oblate with a deformation and represents the best evidence to date for proton emission from an oblate nucleus.
Original languageEnglish
Title of host publicationExotic Nuclei IASEN-2013
Subtitle of host publicationProceedings of the First International African Symposium on Exotic Nuclei
EditorsEvgeni Cherepanov, Yuri Penionzhkevich, Dmitri Kamanin, Robert Bark, John Cornell
PublisherWorld Scientific Publishing Co Pte Ltd
Pages285-293
Number of pages9
ISBN (Electronic)9789814632058
ISBN (Print)9789814632034
DOIs
Publication statusPublished - Dec 2013
Externally publishedYes
EventFirst International African Symposium on Exotic Nuclei - Cape Town, South Africa
Duration: 2 Dec 20136 Dec 2013

Publication series

NameIASEN-2013
PublisherWorld Scientific Publishing Co Pte Ltd

Conference

ConferenceFirst International African Symposium on Exotic Nuclei
CountrySouth Africa
CityCape Town
Period2/12/136/12/13

Keywords

  • lifetimes
  • RDDS
  • RDT
  • oblate deformation
  • isomeric states

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    Taylor, M. J., Cullen, D. M., Procter, M. G., Smith, A. J., McFarlane, A., Twist, V., Alharshan, G. A., Grahn, T., Greenlees, P. T., Auranen, K., Hauschild, K., Herzan, A., Jakobsson, U., Jones, P. M., Julin, R., Juutinen, S., Ketelhut, S., Konki, J., Leino, M., ... Ellinger, E. (2013). Investigation into the effects of deformation on proton emission rates via lifetime measurements. In E. Cherepanov, Y. Penionzhkevich, D. Kamanin, R. Bark, & J. Cornell (Eds.), Exotic Nuclei IASEN-2013: Proceedings of the First International African Symposium on Exotic Nuclei (pp. 285-293). (IASEN-2013). World Scientific Publishing Co Pte Ltd. https://doi.org/10.1142/9789814632041_0030