Spectroscopy of 232U in the (p,t) reaction: More information on 0+ states

TL;DR

This study investigates the excitation spectra of the deformed nucleus 232U using the (p,t) reaction, identifying 0+ states and rotational bands, and comparing experimental data with theoretical models to understand nuclear structure.

Contribution

It provides new experimental data on 232U's excited states, assigns 0+ states, and compares these findings with IBM and QPM theoretical models.

Findings

13 excited states assigned as 0+

Identification of rotational bands and moments of inertia

Comparison with IBM and QPM models supports two- or one-phonon nature

Abstract

The excitation spectra in the deformed nucleus 232U have been studied by means of the (p,t) reaction, using the Q3D spectrograph facility at the Munich Tandem accelerator. The angular distributions of tritons were measured for 162 excitations seen in the triton spectra up to 3.25 MeV. 0+ assignments are made for 13 excited states by comparison of experimental angular distributions with the calculated ones using the CHUCK3 code. Assignments up to spin 6+ are made for other states. Sequences of states are selected which can be treated as rotational bands. Moments of inertia have been derived from these sequences, whose values may be considered as evidence of the two- or one-phonon nature of these 0+ excitations. Experimental data are compared with interacting boson model (IBM) and quasiparticle-phonon model (QPM) calculations.