# Excited states of the odd-odd nucleus 158Eu from the (d,alpha) reaction

## TL;DR

This study investigates the excited states of the 158Eu nucleus using the (d, alpha) reaction, identifying over 50 states up to 1.6 MeV, and compares the level density with neighboring isotopes to understand nuclear structure.

## Contribution

First detailed mapping of excited states in 158Eu via the (d, alpha) reaction, extending knowledge of level densities in this mass region.

## Key findings

- Over 50 excited states identified up to 1.6 MeV
- Some states correspond to beta-decay observations in 158Sm
- Level density trends consistent with neighboring isotopes

## Abstract

Excited states in the 158Eu nucleus have been determined with the 160Gd(d, alpha)158Eu reaction, studied at an incident energy of 18.0 MeV with the Munich tandem and the Q3D spectrograph. More than 50 excited states have been determined up to 1.6 MeV excitation, some of them corresponding to states previously observed in the beta-decay of 158Sm. The number of levels found in this nucleus at low excitation energies follows the systematic trend of the level densities in the other isotopes with mass 152-156.