Speaker
Gunvor Thinggaard Koldste
(Aarhus University (DK))
Description
The beta-delayed three-proton decay has so far only been observed in two nuclei: 45Fe [1] and 43Cr [2,3]. Pfützner et al. [4] recently discovered it from 31Ar and it has also been observed now in the analysis of the 31Ar decay-experiment IS476. The IS476 experiment gives the unique possibility to not just identify the decay, but to do spectroscopy on it. This is due to the good energy and angular resolution, given from the setup of 6 Double Sided Silicon Strip Detectors in cube formation.
I will present the latest results of the IS476 experiment, which are currently being prepared for publication, with the focus on the beta-3p decay. The study of the beta-3p decay has revealed decay channels, which previously were not considered significant, and this influences the beta-strength significantly.
[1] K. Miernik et al. Phys. Rev. C 76 (2007) 041304.
[2] M. Pomorski et al. Phys. Rev. C 83 (2011) 014306.
[3] L. Audirac et al. Eur. Phys. J. A 48 (2012) 179.
[4] M. Pfützner et al. GSI Scientific Report (2012) 147.
Primary author
Gunvor Thinggaard Koldste
(Aarhus University (DK))
Co-author
Collaboration IS476
(ISOLDE)
