Isoscalar Giant Monopole Resonance in Mo-100: TDHF calculations and ground state deformation

TL;DR

This paper combines experimental alpha scattering data with TDHF calculations to analyze the isoscalar giant monopole resonance in Mo-100, revealing the influence of ground state deformation and suggesting triaxiality.

Contribution

It demonstrates how ground state shape affects resonance features and provides evidence for triaxial deformation in Mo-100 through combined experimental and theoretical analysis.

Findings

Reproduced observed strength function with TDHF calculations

Ground state shape significantly influences resonance structure

Evidence suggests Mo-100 has triaxial deformation

Abstract

The isoscalar giant monopole resonance in molybdenum-100 has been measured in recent alpha scattering experiments and its strength function extracted. By performing time-dependent Hartree-Fock calculations with Skyrme effective interactions, we are able to reproduce the gross features of the observed strength. The details of the structure are found to be dependent on the ground state shape. We use a measure of fit to determine which ground state shape correlates with the observed strength and find evidence for triaxiality in this nucleus.