Experimental study of ¹⁰⁰Tc β decay with total absorption γ-ray spectroscopy

• Autores: Guadilla, V.; Algora, A.; Tain, J. L.; Agramunt, J.; Jordan, D.; Montaner Pizá, A.; Orrigo, S. E. A.; Rubio, B.; Valencia, E.; Suhonen, J.; Civitarese, Enrique Osvaldo; Äystö, J.; Briz, J. A.; Cucoanes, A.; Eronen, T.; Estienne, M.; Fallot, M.; Fraile, L. M.; Ganioglu, E.; Gelletly, W.; Gorelov, D.; Hakala, J.; Jokinen, A.; Kankainen, A.; Kolhinen, V.; Koponen, J.; Lebois, M.; Martinez, T.; Monserrate, M.; Moore, I.; Nácher, E.; Penttilä, H.; Pohjalainen, I.; Porta, A.; Reinikainen, J.; Reponen, M.; Rinta Antila, S.; Rytkönen, K.; Shiba, T.; Sonnenschein, V.; Sonzogni, A. A.; Vedia, V.; Voss, A.; Wilson, J. N.; Zakari Issoufou, A. A.
• Año de publicación: 2017
• Idioma: inglés
• Tipo de recurso: artículo
• Materia: Ciencias Exactas; Física; Beta decay; Matrix elements; Beta decay transitions
• Institución: Universidad Nacional de La Plata

The β decay of ¹⁰⁰Tc has been studied by using the total absorption γ-ray spectroscopy technique at the Ion Guide Isotope Separator On-Line facility in Jyväskylä. In this work the new Decay Total Absorption γ-ray Spectrometer in coincidence with a cylindrical plastic β detector has been employed. The β intensity to the ground state obtained from the analysis is in good agreement with previous high-resolution measurements. However, differences in the feeding to the first-excited state as well as weak feeding to a new level at high excitation energy have been deduced from this experiment. Theoretical calculations performed in the quasiparticle random-phase approximation framework are also reported. Comparison of these calculations with our measurement serves as a benchmark for calculations of the double β decay of ¹⁰⁰Mo.
Facultad de Ciencias Exactas