Angular distribution of \ensuremath{\alpha} particles from oriented $^{253,254}\mathrm{Es}$ and $^{255}\mathrm{Fm}$ nuclei

Angular distribution of α particles from oriented ${}^{253, 254}{Es}$ and ${}^{255}{Fm}$ nuclei

N. Severijns, A. A. Belyaev, A. L. Erzinkyan, P.-D. Eversheim, V. T. Filimonov, V. V. Golovko, G. M. Gurevich, P. Herzog, I. S. Kraev, A. A. Lukhanin, V. I. Noga, V. P. Parfenova, T. Phalet, A. V. Rusakov, Yu. G. Toporov, C. Tramm, V. N. Vyachin, D. Zákoucký, and E. Zotov

Phys. Rev. C 71, 044324 – Published 29 April 2005

Abstract

The anisotropy in the angular distribution of α particles from oriented ${}^{253, 254}{Es}$ and ${}^{255}{Fm}$ nuclei, which are among the strongest deformed α emitters, was measured. Large α anisotropies have been observed for all three nuclei. The results are compared with calculations based on α-particle tunneling through a deformed Coulomb barrier.

Received 26 January 2005

DOI:https://doi.org/10.1103/PhysRevC.71.044324

Authors & Affiliations

N. Severijns^1,*, A. A. Belyaev², A. L. Erzinkyan³, P.-D. Eversheim⁴, V. T. Filimonov⁵, V. V. Golovko¹, G. M. Gurevich⁶, P. Herzog⁴, I. S. Kraev¹, A. A. Lukhanin², V. I. Noga², V. P. Parfenova³, T. Phalet¹, A. V. Rusakov⁶, Yu. G. Toporov⁵, C. Tramm⁴, V. N. Vyachin⁷, D. Zákoucký⁸, and E. Zotov⁵

¹Instituut voor Kern- en Stralingsfysica, K.U. Leuven, B-3001 Leuven, Belgium
²Kharkov Institute of Physics and Technology, 61108 Kharkov, Ukraine
³Institute of Nuclear Physics, Moscow State University, 119992 Moscow, Russia
⁴Helmholtz Institute für Strahlen- und Kernphysik, Universität Bonn, D-53115 Bonn, Germany
⁵Research Institute for Atomic Reactors, 433510 Dimitrovgrad-10, Russia
⁶Institute for Nuclear Research, Russian Academy of Sciences, 119312, Moscow, Russia
⁷RFNC All-Russian Scientific Research Institute of Experimental Physics, 607190 Sarov, Russia
⁸Nuclear Physics Institute, Academy of Sciences of Czech Republic, CZ-25068 Řež, Czech Republic

^*Electronic address: nathal.severijns@fys.kuleuven.ac.be

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Vol. 71, Iss. 4 — April 2005

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Physical Review C

covering nuclear physics

Angular distribution of α particles from oriented ${}^{253, 254}{Es}$ and ${}^{255}{Fm}$ nuclei

N. Severijns, A. A. Belyaev, A. L. Erzinkyan, P.-D. Eversheim, V. T. Filimonov, V. V. Golovko, G. M. Gurevich, P. Herzog, I. S. Kraev, A. A. Lukhanin, V. I. Noga, V. P. Parfenova, T. Phalet, A. V. Rusakov, Yu. G. Toporov, C. Tramm, V. N. Vyachin, D. Zákoucký, and E. Zotov

Phys. Rev. C 71, 044324 – Published 29 April 2005

Abstract

Authors & Affiliations

Article Text (Subscription Required)

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Physical Review C

covering nuclear physics

Angular distribution of α particles from oriented Es253,254 and Fm255 nuclei

N. Severijns, A. A. Belyaev, A. L. Erzinkyan, P.-D. Eversheim, V. T. Filimonov, V. V. Golovko, G. M. Gurevich, P. Herzog, I. S. Kraev, A. A. Lukhanin, V. I. Noga, V. P. Parfenova, T. Phalet, A. V. Rusakov, Yu. G. Toporov, C. Tramm, V. N. Vyachin, D. Zákoucký, and E. Zotov

Phys. Rev. C 71, 044324 – Published 29 April 2005

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Angular distribution of α particles from oriented ${}^{253, 254}{Es}$ and ${}^{255}{Fm}$ nuclei