Gamma Spectroscopy of Neutron-deficient Nuclei Close to \(^{70}\)Br Using the EAGLE Array and Ancillary Detectors at the Heavy Ion Laboratory in Warsaw
Year: 2026
Type: conference-abstract
Abstract: The \(A=70\), \(T=1\) isobaric multiplet exhibits an anomalous Coulomb energy difference (CED) behavior, with the \(^{70}\)Br/\(^{70}\)Se pair showing a decrease in CED with increasing spin, contrary to the typical trend observed in other \(pf\)-shell nuclei. To investigate this phenomenon, a dedicated experiment was carried out at the Heavy Ion Laboratory of the University of Warsaw using an 88 MeV \(^{32}\)S beam impinging on a \(^{40}\)Ca target. Excited states in \(A \approx 70\) neutron-deficient nuclides were populated in fusion–evaporation reactions. Gamma rays were measured with the EAGLE spectrometer, whereas the reaction channel identification was provided by the combined set of neutron — NEDA and charged particle — DIAMANT detectors. Preliminary data analysis shows the satisfactory performance of the setup, which will allow for in-depth studies of the structure of the nuclei of interest. Abstract Published by the Jagiellonian University 2026 authors
Authors: D. Duda, M. Matejska-Minda, A. Fijałkowska, G. Jaworski, I. Kuti, A. Malinowski, M. Palacz, P. Sekrecka, G. de Angelis, P. Bednarczyk, T. Cap, M. Ciemała, N. Cieplicka-Oryńczak, G. Colucci, I. Dedes, J.M. Deltoro, N. Erduran, K. Gajewska, A. Goasduff, V. González, J. Grębosz, K. Hadyńska-Klęk, Ł. Iskra, P. Kulessa, M. Kmiecik, M. Komorowska, M. Kopeć, M. Kowalczyk, J.A. Kowalska, A. Krakó, B. Kruzsicz, M. Loriggiola, M. Matuszewski, K. Mazurek, J. Molnár, P.J. Napiorkowski, A. Otręba, M. Pęgier, W. Poklepa, M. Regulska, J. Samorajczyk-Pyśk, E. Sanchis, O. Stezowski, A. Stolarz, A. Špaček, N. Toniolo, J. Towers, K. Wrzosek-Lipska
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7144030337
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