Multiphonon nuclear response in O-16: A microscopic treatment equivalent to shell model

Abstract

We have reformulated an equation of motion method for generating iteratively a basis of multiphonon states built of Tamm-Dancoff phonons. Represented in such a basis, the Hamiltonian matrix has a simple structure and can be easily brought to diagonal form.

The method is here adopted to compute the energy levels and the electromagnetic responses in O-16, chosen as testing ground because of its complex structure.

Keywords

• Multiphonon
• nuclear
• response
• O-16
• microscopic
• treatment
• equivalent
• shel
• model