# High resolution $\gamma$-ray spectroscopy using GALILEO array

## TL;DR

The paper describes the construction and application of the GALILEO gamma-ray spectrometer at LNL-INFN, highlighting its capabilities for nuclear structure studies using advanced in-beam gamma-ray spectroscopy methods with stable and radioactive beams.

## Contribution

It introduces the GALILEO array's design, its coupling with ancillary devices, and demonstrates its application in two nuclear spectroscopy experiments.

## Key findings

- Spectroscopic studies in A=31 mirror nuclei.
- Lifetime measurements of excited states near 100Sn.
- Successful implementation of GALILEO with ancillary detectors.

## Abstract

The GALILEO $\gamma$-ray spectrometer has been constructed at the Legnaro National Laboratory of INFN (LNL-INFN). It can be coupled to advanced ancillary devices which allows nuclear structure studies employing the variety of in-beam $\gamma$-ray spectroscopy methods. Such studies benefit from reactions induced by the intense stable beams delivered by the Tandem-ALPI-PIAVE accelerator complex and by the radioactive beams which will be provided by the SPES facility. In this paper we outline two experiments performed within the experimental campaign at GALILEO coupled to the EUCLIDES Si-ball and the Neutron Wall array. The first one was aimed at spectroscopic studies in A=31 mirror nuclei and the second one at measurements of lifetimes of excited states in nuclei in the vicinity of $^{100}$Sn.