Alpha-Particle Angular Distributions of At and Rn Isotopes and Their Relation to Nuclear Structure

P. Schuurmans, B. Will, I. Berkes, J. Camps, M. De Jesus, P. De Moor, P. Herzog, M. Lindroos, R. Paulsen, N. Severijns, A. Van Geert, P. Van Duppen, and L. Vanneste (NICOLE Collaboration, ISOLDE Collaboration)
Phys. Rev. Lett. 77, 4720 – Published 2 December 1996
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Abstract

We report on an extensive on-line nuclear orientation study of the angular distribution of α particles emitted in the favored decay of neutron deficient At and Rn nuclei near the N=126 shell closure. Surprisingly large anisotropies were observed, showing pronounced changes from one isotope to another. Comparing these data with several theoretical models shows that anisotropic α emission in favored decays from near-spherical nuclei can well be explained within the shell model, implying that it is mainly determined by the structure of the decaying nucleus.

  • Received 12 March 1996

DOI:https://doi.org/10.1103/PhysRevLett.77.4720

©1996 American Physical Society

Authors & Affiliations

P. Schuurmans1, B. Will2, I. Berkes3, J. Camps1, M. De Jesus3, P. De Moor1, P. Herzog2, M. Lindroos4, R. Paulsen2, N. Severijns1, A. Van Geert1, P. Van Duppen4, and L. Vanneste1 (NICOLE Collaboration, ISOLDE Collaboration)

  • 1Instituut voor Kern- en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
  • 2Institut für Strahlen- und Kernphysik, Universität Bonn, Nussallee 14-16, D-53115 Bonn, Germany
  • 3Institut de Physique Nucléaire, Université Lyon I, 43 Boulevard du 11 Novembre, F-69621 Villeurbanne, France
  • 4CERN, PPE division (ISOLDE), CH-1211 Geneva 23, Switzerland

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Vol. 77, Iss. 23 — 2 December 1996

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