Lifetime determination of excited states in 104Ru and 130Te via a new Doppler-shift attenuation approach

The Coincidence Doppler-shift attenuation method (CDSAM) after proton scattering is a well-established technique for determining nuclear-level lifetimes in the range of sub-picoseconds. In recent years, several (p,p'γ) experiments have been performed utilizing the combined detector array SONIC@...

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Bibliographic Details
Main Authors: Bohn Anna, Binger Elias, Heim Felix, Prill Sarah, Weinert Michael, Zilges Andreas
Format: Article
Language:English
Published: EDP Sciences 2025-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2025/14/epjconf_cgs17_03004.pdf
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Summary:The Coincidence Doppler-shift attenuation method (CDSAM) after proton scattering is a well-established technique for determining nuclear-level lifetimes in the range of sub-picoseconds. In recent years, several (p,p'γ) experiments have been performed utilizing the combined detector array SONIC@HORUS consisting of 14 HPGe detectors and 12 silicon detectors. To complement the well-established analysis procedure, a reverse method was tested. A first benchmark analysis was conducted on 130Te, showing good agreement. Furthermore, spectroscopy and level-scheme construction are feasible due to the coincidence conditions enabled by γ- as well as particle-detection using SONIC@HORUS. Preliminary results on 104Ru obtained by inelastic proton scattering and the fundamental principles of the reverse approach benchmarked on 130Te, will be presented.
ISSN:2100-014X