Study of the isospin character of 1-states using hadronic probes at intermediate energies
1 Institut für Kernphysik, Universität zu Köln, 50937 Köln, Germany
2 Kernfysisch Versneller Instituut, University of Groningen, 9747 AA Groningen, The Netherlands
3 GANIL, CEA/DSM-CNRS/IN2P3, 14076 Caen, France
4 ExtreMe Matter Institute EMMI and Research Division, GSI, 64291 Darmstadt, Germany
5 Frankfurt Institute for Advanced Studies FIAS, 60438 Frankfurt am Main, Germany
a e-mail: firstname.lastname@example.org
Published online: 28 May 2015
The complementary (γ, γ′) and (α, α′γ) reactions were used to study the isospin properties of low-lying E1 excitations in the doubly-magic nucleus 48Ca. In contrast to heavier nuclei, a state-to-state change in isospin character was revealed in 48Ca and a dominant isoscalar excitation was found which is interpreted as an isoscalar oscillation. Recently, protons at 80 MeV were used as an additional hadronic probe in a p-γ coincidence experiment on 140Ce for the first time. Results of the experiments on 48Ca and first results of the 140Ce will be presented in this contribution.
© Owned by the authors, published by EDP Sciences, 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.