Gießen 2024 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 72: Poster
HK 72.47: Poster
Thursday, March 14, 2024, 17:15–18:45, HBR 14: Foyer
Lifetime measurement of neutron rich Xe isotopes applying Fast-Timing method — •Andi Messingschlager1, Martin von Tresckow1, Thorsten Kröll1, Matthias Rudigier1, Andrey Blazhev2, Julia Fischer2, Sorin Pascu3, and Jonathan N. Wilson4 for the nu-Ball2 N-SI-120 collaboration — 1TU Darmstadt — 2U Cologne — 3U Surrey — 4IJCLab Orsay
140,142Xe are neutron rich isotopes which lie in a region of emerging quadrupole collectivity [1,2]. The lifetimes of the excited states of 140,142Xe are in the range of a few tens of picoseconds, making the Fast-Timing method suitable so that the resulting transition strength can be compared to predictions by theory. The isotopes of interest are produced through a fission reaction 238U(n,f) during the nu-Ball2 campaign. The nu-Ball2 spectrometer comprises a detector array consisting of 24 HPGe Clover detectors and 20 LaBr3(Ce) detectors from FATIMA, offering excellent energy and time resolution, respectively. The campaign was performed 2022 at IJCLab in Orsay, France. Preliminary results will be presented. Supported by BMBF under Verbundprojekt 05P2021 (ErUM-FSP T07) grant 05P21RDFN1 and ARIEL grant 847594.
[1] S. Ilieva et al., PRC 94, 034302 (2016).
[2] C. Henrich, Dissertation TU Darmstadt (2020)
Keywords: Xenon; Fast timing; Lifetime; gamma-ray spectroscopy; fission