Berlin 2005 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 38: Kernphysik/Spektroskopie
HK 38.4: Vortrag
Mittwoch, 9. März 2005, 15:00–15:15, TU MA004
EUROBALL+BRS as a tool for uniquely identifying weakly populated structures in light nuclei. — •Carl Wheldon1, Tzany Kokalova1,2, Severin Thummerer1, Burckhard Gebauer1, Wolfram von Oertzen1,2, Christian Schulz1, Hans-Gerhard Bohlen1, Giacomo de Angelis3, Enrico Farnea3, Daniel R. Napoli3, Silvia M. Lenzi4, Christian Beck5, Marc Rousseau5, and Paul Papka5 — 1SF7, Hahn-Meitner-Institut, Glienicker Straße 100, D-14109 Berlin, Germany — 2Freie Universität Berlin, Germany — 3INFN-Laboratori Nazionali di Legnaro, Legnaro, Italy — 4Dipartimento di Fisica dell’Università and INFN, Sezione di Padova, Italy — 5Institut de Recherches Subatomiques, Strasbourg, France
In order to search for highly-deformed nuclear cluster states based on α-particle structures in light nuclei, A<28, a reaction mechanism is required that makes use of pre-clustered target and/or projectile nuclei. Furthermore, the parity doublet structures that characterise asymmetrically deformed states, need to be cleanly extracted from the multitude of competing reaction channels.
To this end, an experiment was performed using the Berlin-Binary-Reaction-Spectrometer (BRS) in conjunction with the EUROBALL array, which in this instance comprised 15 cluster and 26 clover detectors. The 90 MeV D.C. 18O beam was provided by the IReS, Strasburg Vivitron and incident on a thin, 98 µg cm−2, 9Be target. The BRS enables the charge, Z, of both binary products to be uniquely determined, in addition to providing millimetre position and precise energy information.
The p−γ coincidence analysis method and results will be reported.