Identification of the Iπ=10+ Yrast Rotational State in M24g

I. Wiedenhöver, A. H. Wuosmaa, R. V. F. Janssens, C. J. Lister, M. P. Carpenter, H. Amro, P. Bhattacharyya, B. A. Brown, J. Caggiano, M. Devlin, A. Heinz, F. G. Kondev, T. Lauritsen, D. G. Sarantites, S. Siem, L. G. Sobotka, and A. Sonzogni
Phys. Rev. Lett. 87, 142502 – Published 14 September 2001
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Abstract

Spins and parities of high spin states above the particle-binding threshold in 24Mg were determined with a basis expansion technique using triple and quadruple angular correlations between α particles and γ rays. The first unambiguous identification of a 10+ state is reported. Located at 19.2(1) MeV, this state decays predominantly by α emission, although a candidate γ-decay branch with a 5.927 MeV transition connecting this 10+ level to the rotational 8+ state at 13.2 MeV was identified as well. The corresponding γα branching ratio is 7(3)×104.

  • Received 5 February 2001

DOI:https://doi.org/10.1103/PhysRevLett.87.142502

©2001 American Physical Society

Authors & Affiliations

I. Wiedenhöver1,*, A. H. Wuosmaa1, R. V. F. Janssens1, C. J. Lister1, M. P. Carpenter1, H. Amro1,†, P. Bhattacharyya2, B. A. Brown3, J. Caggiano1, M. Devlin4,‡, A. Heinz1, F. G. Kondev1, T. Lauritsen1, D. G. Sarantites4, S. Siem1,§, L. G. Sobotka4, and A. Sonzogni1

  • 1Argonne National Laboratory, Argonne, Illinois 60439
  • 2Purdue University, West Lafayette, Indiana 47907
  • 3Michigan State University, East Lansing, Michigan 48824
  • 4Washington University, St. Louis, Missouri 63130

  • *Present address: NSCL, Michigan State University, East Lansing, MI 48824.
  • Present address: Mississippi State University, Mississippi State, MS 39372.
  • Present address: Los Alamos National Laboratory, Los Alamos, NM 87545.
  • §Present address: University of Oslo, Oslo, Norway.

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Vol. 87, Iss. 14 — 1 October 2001

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