2019 Impact factor 2.176
Hadrons and Nuclei
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. Smith8

1  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 $\chem{Ge}$ 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 $\chem{Pb}$ 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 - $150\leq A \leq 189$ .
27.80.+w - $190 \leq A \leq 219$ .
23.20.Lv - Gamma transitions and level energies.

© Società Italiana di Fisica, Springer-Verlag 2002