Eur. Phys. J. A (2005) 25: 599-604
https://doi.org/10.1140/epjad/i2005-06-026-0

ENAM 2004

In-beam and decay spectroscopy of transfermium elements

¹ Department of Physics, University of Jyväskylä, PB 35, FIN-40014, Finland
² Department of Physics, University of Liverpool, Oxford Street, L69 7ZE, Liverpool, UK
³ DAPNIA/SPhN CEA-Saclay, Gif-sur-Yvette, F-91191, France
⁴ IReS, 23 Rue du Loess, B.P. 28, F-67037, Strasbourg, France
⁵ Department of Physical Sciences, University of Helsinki, FIN-00014, Finland
⁶ GSI, D-64291, Darmstadt, Germany
⁷ Argonne National Laboratory, 60439, Argonne, IL, USA
⁸ Ludwig Maximilians Universität, D-85748, Garching, Germany

^* e-mail: ptg@phys.jyu.fi

Received: 14 January 2004
Accepted: 9 March 2005
Published online: 22 April 2005

Abstract

Over the past few years a great deal of new spectroscopic data has been obtained for transfermium nuclei. Recoil separators, coupled with modern target position and focal-plane spectrometers, allow detailed studies of the structure and decay properties of transfermium nuclei to be peformed. In-beam studies using the recoil-gating and recoil-decay tagging techniques mainly provide information on yrast states, whilst complementary focal-plane decay studies give access to non-yrast and isomeric structures. In-beam studies of nuclei in this region have largely been performed at ANL and JYFL, and decay experiments at GSI, JYFL, GANIL and ANL. The present contribution is focussed on recent developments and experiments carried out by a number of collaborating institutes at JYFL.