arxiv: 1704.00547 · v1 · pith:AGLMBWPOnew · submitted 2017-04-03 · ⚛️ nucl-ex

Study of the β-decay of ¹⁰⁰Tc with Total Absorption γ-Ray Spectroscopy

V. Guadilla , A. Algora , J.L. Tain , J. Agramunt , D. Jordan , A. Montaner-Piz\'a , S.E.A. Orrigo , B. Rubio

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E. Valencia J. Suhonen O. Civitarese J. \"Ayst\"o J.A. Briz A. Cucoanes T. Eronen M. Estienne M. Fallot L.M. Fraile E. Ganioglu W. Gelletly D. Gorelov J. Hakala A. Jokinen A. Kankainen V. Kolhinen J. Koponen M. Lebois T. Martinez M. Monserrate I. Moore E. N\'acher H. Penttil\"a I. Pohjalainen A. Porta J. Reinikainen M. Reponen S. Rinta-Antila K. Rytk\"onen T. Shiba V. Sonnenschein A.A. Sonzogni V. Vedia A. Voss J.N. Wilson A.-A. Zakari-Issoufou

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keywords beencalculationsdecayabsorptionfeedinggammaspectroscopystate

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The \b{eta}-decay of 100 Tc has been studied using the Total Absorption {\gamma}-Ray Spectroscopy technique at IGISOL. In this work the new DTAS spectrometer in coincidence with a cylindrical plastic \b{eta} detector has been employed. The \b{eta}-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 (QRPA) framework are also reported. Comparison of these calculations with our measurement serves as a benchmark for calculations of the double \b{eta}-decay of 100 Mo.

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Study of the β-decay of ¹⁰⁰Tc with Total Absorption γ-Ray Spectroscopy

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