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In-beam spectroscopy of 253, 254No |
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| Authors: | R-D Herzberg N Amzal JE Bastin F Becker PMT Brew PA Butler AJC Chewter JFC Cocks O Dorvaux K Eskola J Gerl PT Greenlees NJ Hammond K Hauschild K Helariutta F Heßberger M Houry A Hürstel RD Humphreys GD Jones PM Jones R Julin S Juutinen H Kankaanpää H Kettunen TL Khoo W Korten P Kuusiniemi Y Le Coz M Leino AP Leppänen CJ Lister R Lucas M Muikku P Nieminen RD Page T Page P Rahkila P Reiter Ch Schlegel C Scholey G Sletten O Stezowski Ch Theisen WH Trzaska J Uusitalo HJ Wollersheim |
| Institution: | Oliver Lodge Laboratory, University of Liverpool, UK, GB DAPNIA/SPhN CEA-Saclay, France, FR Department of Physics, University of Jyv?skyl?, Finland, FI University of Helsinki, Finland, FI GSI Darmstadt, Germany, DE Argonne National Laboratory, USA, US Ludwig Maximilians Universit?t München, Germany, DE Nils Bohr Institute, University of Copenhagen, Denmark, DK |
| Abstract: | In-beam conversion electron spectroscopy experiments have been performed on the transfermium nuclei 253, 254No using the conversion electron spectrometer SACRED in nearly collinear geometry in conjunction with the gas-filled separator RITU at the University of Jyv?skyl?. The experimental setup is discussed and the spectra are compared to Monte Carlo simulations. The implications for the ground-state configuration of 253No are discussed. Received: 21 March 2002 / Accepted: 16 May 2002 / Published online: 31 October 2002 RID="a" ID="a"e-mail: rdh@ns.ph.liv.ac.uk RID="b" ID="b"Present address: GANIL, F-14021 Caen, France. RID="c" ID="c"Permanent address: IReS Strasbourg, IN2P3-CNRS, F-67037-Strasbourg, France. RID="d" ID="d"Present address: CEA/DIF DCRE/SDE/LDN F-91680 Bruyeres-le-Chatel. RID="e" ID="e"Present address: Daresbury Laboratory, Daresbury WA4 4AD, UK. RID="f" ID="f"Permanent address: IPN Lyon, IN2P3-CNRS, F-69037 Lyon, France. |
| Keywords: | PACS 21 10 -k Properties of nuclei nuclear energy levels – 23 20 Lv Gamma transitions and level energies – 23 20 Nx Internal conversion and extranuclear effects – 27 90 +b A ≥ 220 |
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