https://doi.org/10.1140/epja/s10050-020-00145-5
Regular Article - Theoretical Physics
Yrast band in the heavy N = Z nucleus 
Ru: 
-cluster approach
1
Institute for Nuclear Research (Atomki), 4001, Debrecen, Hungary
2
Diakonie-Klinikum, 74523, Schwäbisch Hall, Germany
* e-mail: mohr@atomki.mta.hu
Received:
10
March
2020
Accepted:
11
April
2020
Published online:
18
May
2020
The yrast band in the heavy 
nucleus Ru is studied in the framework of the -cluster model in combination with double-folding potentials. It is found that the excitation energies of the yrast band in Ru can be nicely described within the -cluster approach using a smooth and mildly L-dependent adjustment of the potential strength. This result is similar to well-established -cluster states in nuclei with a (magic core 
) structure. Contrary, the yrast bands in neighboring 
nuclei deviate from such a typical -cluster behavior. Finally, the -cluster model predicts reduced transition strengths of about 10 Weisskopf units for intraband transitions between low-lying states in the yrast band of Ru.
© The Author(s), 2020
