High-spin intruder band in $^{107}$In

TL;DR

This paper reports the discovery of a high-spin rotational band in the neutron-deficient nucleus $^{107}$In, observed through gamma-ray spectroscopy, and compares experimental results with theoretical models.

Contribution

It provides the first observation of a high-spin intruder band in $^{107}$In and compares experimental data with theoretical calculations.

Findings

Identification of a rotational cascade with ten gamma-ray transitions

The band shows features of smooth terminating bands

Comparison with theoretical models supports the experimental interpretation

Abstract

High-spin states in the neutron deficient nucleus $^{107}$In were studied via the $^{58}$Ni($^{52}$Cr, 3p) reaction. In-beam $\gamma$ rays were measured using the JUROGAM detector array. A rotational cascade consisting of ten $\gamma$-ray transitions which decays to the 19/2$^{+}$ level at 2.002 MeV was observed. The band exhibits the features typical for smooth terminating bands which also appear in rotational bands of heavier nuclei in the A$\sim$100 region. The results are compared with Total Routhian Surface and Cranked Nilsson-Strutinsky calculations.