Lifetimes of nuclear excited states are important observables in nuclear structure studies, since they can directly be related to electromagnetic transition matrix elements. The determination of transition probabilities between nuclear states provides information on their microscopic structure and represents an important benchmark for nuclear structure models. In recent experiments at INFN Legnaro National Laboratories, we coupled the newly installed γ-ray tracking spectrometer AGATA with light charged-particle detection systems to perform lifetime measurements after one- and two-nucleon direct transfer reactions at 5-10 AMeV. In this contribution, we will present two cases, related to the measurement of lifetimes in the femtosecond and picosecond range in 37S and 56Ni, on the basis of which the possibilities offered by this kind of set-up and some preliminary results will be discussed.

Lifetime measurement after direct transfer reactions with AGATA at LNL

Galtarossa F.;Pasqualato G.;Mengoni D.;Andreetta G.;Angelini F.;Brugnara D.;Carollo S.;Giaz A.;Goasduff A.;Huang Z.;Lenzi S. M.;Pellumaj J.;Pigliapoco S.;Polettini M.;Recchia F.;Rezynkina K.;Spina G.;Stramaccioni D.;Zanon I.;Zhang G.
2025

Abstract

Lifetimes of nuclear excited states are important observables in nuclear structure studies, since they can directly be related to electromagnetic transition matrix elements. The determination of transition probabilities between nuclear states provides information on their microscopic structure and represents an important benchmark for nuclear structure models. In recent experiments at INFN Legnaro National Laboratories, we coupled the newly installed γ-ray tracking spectrometer AGATA with light charged-particle detection systems to perform lifetime measurements after one- and two-nucleon direct transfer reactions at 5-10 AMeV. In this contribution, we will present two cases, related to the measurement of lifetimes in the femtosecond and picosecond range in 37S and 56Ni, on the basis of which the possibilities offered by this kind of set-up and some preliminary results will be discussed.
2025
EPJ Web of Conferences
5th International Conference on Nuclear Structure and Dynamics, NSD 2024
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3595168
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