Study of the isospin character of 1-states using hadronic probes at intermediate energies

V. Derya; J. Endres; M.N. Harakeh; D. Savran; M. Spieker; H.J. Wörtche; A. Zilges

doi:10.1051/epjconf/20159301041

All issues

Volume 93 (2015)

EPJ Web of Conferences, 93 (2015) 01041

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 93, 2015 CGS15 – Capture Gamma-Ray Spectroscopy and Related Topics


Article Number		01041
Number of page(s)		4
Section		Nuclear Structure
DOI		https://doi.org/10.1051/epjconf/20159301041
Published online		28 May 2015

EPJ Web of Conferences 93, 01041 (2015)
https://doi.org/10.1051/epjconf/20159301041

Study of the isospin character of 1^-states using hadronic probes at intermediate energies

V. Derya¹^a, J. Endres¹, M.N. Harakeh²^,3, D. Savran⁴^,5, M. Spieker¹, H.J. Wörtche² and A. Zilges¹

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: derya@ikp.uni-koeln.de

Published online: 28 May 2015

Abstract

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.

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