Ciemala, M.Ziliani, S.Crespi, F.Leoni, S.Fornal, B.Maj, A.Bednarczyk, P.2024-11-072024-11-0720200587-42541509-5770https://doi.org/10.5506/APhysPolB.51.699https://hdl.handle.net/11480/1381836th Mazurian Lakes Conference on Physics -- SEP 01-07, 2019 -- Piaski, POLANDAn experiment, aiming at measuring lifetimes of excited states in neutron-rich C and O isotopes, was performed at the GANIL laboratory with the use of the AGATA segmented HPGe tracking array, coupled to the PARIS scintillator array and to the VAMOS++ magnetic spectrometer. The nuclei of interest were populated in transfer and deep-inelastic processes induced by an O-18 beam at 126 MeV (7.0 MeV/u) on a Ta-181 target. This paper contains a brief description of a novel implementation of a Monte-Carlo technique, which allowed us to obtain excited states lifetimes in the range from tens to hundreds femtoseconds for a reaction with complex initial velocity distribution, making use of the Doppler-shift attenuation method (DSAM). As a test case, we present here the analysis for two states in O-19: 2371-keV 9/2(+) and 2779-keV 7/2(+), for which lifetimes of tau > 400 fs and tau = 140(-40)(+50) fs were obtained, respectively, in agreement with literature values. This newly developed approach will be essential for short lifetimes measurements in neutron-rich systems, exploiting intense ISOL-type beams, currently under development.eninfo:eu-repo/semantics/openAccessAgataSpectroscopyIsotopesStatesConference Object51369970810.5506/APhysPolB.51.6992-s2.0-85085484963Q3WOS:000521823800021Q4