Eur. Phys. J. A 15, 189-193 (2002)
DOI: 10.1140/epja/i2001-10252-6

In-beam studies of very neutron-deficient heavy nuclei

R. Julin¹, P.T. Greenlees¹, K. Helariutta¹, P. Jones¹, S. Juutinen¹, A.-P. Leppänen¹, H. Kankaanpää¹, A. Keenan¹, H. Kettunen¹, P. Kuusiniemi¹, M. Leino¹, M. Muikku¹, P. Nieminen¹, J. Pakarinen¹, P. Rahkila¹, J. Uusitalo¹, D.T. Joss², S.J. Williams², D.G. Jenkins³, N.-S. Kelsall³, R. Wadsworth³, K. Hauschild⁴, A. Hürstel⁴, W. Korten⁴, Y. Le Coz⁴, A.N. Andreyev⁵, P. Van Duppen⁵, M. Huyse⁵, K. Van de Vel⁵, C.J. Moore⁶, C.D. O'Leary⁶, R.D. Page⁶, M.J. Taylor⁶, W. Reviol⁷ and M.B. Smith<sup>8

1</sup>  Department of Physics, University of Jyväskylä, P.O. Box 35 (JYFL), FIN-40351 Jyväskylä, Finland
²  School of Sciences, Staffordshire University, Staffordshire, UK
³  Department of Physics, University of York, York, UK
⁴  CEA Saclay, DAPNIA/SPhN, France
⁵  Instituut voor Kern- en Stralingsfysica, University of Leuven, Belgium
⁶  Department of Physics, University of Liverpool, UK
⁷  Department of Physics, University of Tennessee, Knoxville, TN, USA
⁸  Department of Physics and Astronomy, Rutgers University, NJ, USA

rauno.julin@phys.jyu.fi

(Received: 21 March 2002 / Published online: 31 October 2002)

Abstract
The JYFL gas-filled recoil separator RITU, combined with detector arrays and a SACRED magnetic solenoid spectrometer, has been successfully employed in recoil-decay-tagging (RDT) experiments in order to probe structures of very neutron-deficient heavy nuclei. The present contribution focuses on the light region where the new data extend the systematics of shape-coexisting yrast states towards the proton dripline. Similarities between band structures and their relation to possible multi-particle multi-hole intruder excitations will be discussed.

PACS
21.10.Re - Collective levels.
27.70.+q - .
27.80.+w - .
23.20.Lv - Gamma transitions and level energies.

© Società Italiana di Fisica, Springer-Verlag 2002