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HK: Fachverband Physik der Hadronen und Kerne
HK 30: Structure and Dynamics of Nuclei VII
HK 30.5: Vortrag
Dienstag, 12. März 2024, 18:45–19:00, HBR 19: C 5b
Lifetime measurement in 214Rn applying the Fast-Timing method — •Martin von Tresckow for the IFIN-HH-214Rn collaboration — Institut für Kernphysik, TU Darmstadt
214Rn is in the vicinity of the 208Pb closed core and different theoretical calculations are recently published in this region, based on the independent particle model or taking into account short-range nucleon-nucleon correlations, such as α-clustering. α-clustering may have an important role in the description of the structure of 214Rn due to our results in the isotope with two protons less, 212Po, [Ma. von Tresckow et al., PLB 821, 136624 (2021)] and the large α-decay width of the ground state of 214Rn.
However the experimental transition strengths of the low lying yrast-states aren’t well known and a comparison to theory predictions is not conclusive. Therefore, we performed in June 2023 a fusion-evaporation experiment to investigate excited states of 214Rn and determine the lifetimes applying the Fast-Timing method. The experiment was performed at the ROSPHERE γ-ray detector array at IFIN-HH in Magurele, Romania.
I will present the current state of the lifetime analysis.
This work is financially supported by EUROLABS and by BMBF under Verbundprojekt 05P2021 (ErUM-FSP T07) via grant 05P21RDFN1.
Keywords: 214Rn; Lifetime determination; Fast-Timing method; $\gamma$-ray spectroscopy