Small Quadrupole Deformation for the Dipole Bands in 112In

TL;DR

This study investigates high spin states and dipole bands in 112In, revealing small quadrupole deformations through experimental measurements and theoretical modeling, enhancing understanding of nuclear structure in this isotope.

Contribution

It provides new experimental data on high spin states and dipole bands in 112In, and applies tilted axis cranking model calculations to determine their configurations.

Findings

Observation of excited levels up to 5.6 MeV and spin ~20ħ.

Identification of three dipole bands with polarization and lifetime measurements.

Model calculations confirm quasi-particle configurations of the bands.

Abstract

High spin states in $^{112}$In were investigated using $^{100}$Mo($^{16}$O, p3n) reaction at 80 MeV. The excited level have been observed up to 5.6 MeV excitation energy and spin $\sim$ 20$\hbar$ with the level scheme showing three dipole bands. The polarization and lifetime measurements were carried out for the dipole bands. Tilted axis cranking model calculations were performed for different quasi-particle configurations of this doubly odd nucleus. Comparison of the calculations of the model with the B(M1) transition strengths of the positive and negative parity bands firmly established their configurations.