Plastic scintillator array for MARA focal plane -- search of ''superallowed'' alpha decay
Main funder
Funder's project number: 323710
Funds granted by main funder (€)
- 252 645,00
Funding program
Project timetable
Project start date: 01/09/2019
Project end date: 31/08/2022
Summary
The “superallowed” 108Xe -> 104Te -> 100Sn double alpha-decay chain has been recently observed at Argonne National Laboratory. This is the first observation of N = Z alpha emitters, in which the enhanced proton-neutron interaction should lead to large alpha-particle preformation factor, and thus, exceptionally fast alpha decay. However, only an upper limit was obtained for the 104Te half-life, and the alpha-particle energies were measured with modest accuracy. A novel plastic scintillator-based detector setup will be developed for the focal plane of the new MARA separator in order to improve these observations. The results to be obtained in this study will provide insight on the role of the proton-neutron interaction in the alpha particle preformation.
Principal Investigator
Other persons related to this project (JYU)
Primary responsible unit
Related publications and other outputs
- Probing triaxiality beyond the proton drip line : Spectroscopy of 147Tm (2023) Auranen, K.; et al.; A1; OA
- Properties of the new α-decaying isotope 190At (2023) Kokkonen, H.; et al.; A1; OA
- Nanosecond-Scale Proton Emission from Strongly Oblate-Deformed 149Lu (2022) Auranen, K.; et al.; A1; OA
- Isomeric 13/2+ (νi13/2−1) state in 211Th (2021) Auranen, K.; et al.; A1; OA
- Exploring the boundaries of the nuclear landscape : α-decay properties of 211Pa (2020) Auranen, K.; et al.; A1; OA
- Isomeric 13/2+ state in 201Fr (2020) Auranen, K.; et al.; A1; OA
