Academy of Finland
Funding decision
Applicant / Contact person Auranen, Kalle
Organisation University of Jyväskylä
Project title Plastic scintillator array for MARA focal plane – search of “superallowed” alpha decay.
Decision No. 323710
Decision date 07.05.2019
Funding period 01.09.2019 - 31.08.2022
Funding 252 645
WebFOCUS Report
Project description
The “superallowed” 108Xe ? 104Te ? 100Sn double ????a-decay chain has been recently observed at Argonne National Laboratory. This is the first observation of N = Z a emitters, in which the enhanced proton-neutron interaction should lead to large a-particle preformation factor, and thus, exceptionally fast a decay. However, only an upper limit was obtained for the 104Te half-life, and the a-particle energies were measured with modest accuracy. In this project, 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 a particle preformation.