Transitions To Door-way States And Nuclear Responses Against 2-body External Fields

TL;DR

This paper uses the second-random-phase-approximation (SRPA) to analyze nuclear excitations and state transitions induced by external fields, providing insights into nuclear structure beyond traditional models.

Contribution

It introduces the application of SRPA to study transitions between 1p1h and 2p2h states caused by external fields in nuclei.

Findings

SRPA effectively models nuclear excitations.

Transitions between 1p1h and 2p2h states are characterized.

Insights into nuclear response mechanisms are obtained.

Abstract

Nuclear microscopic structural models that treat two-body effective interactions self-consistently becomes available, one of which is second-random-phase-approximation (SRPA). SRPA can be used to study evolutions from 1 particle-1 hole (1p1h) to 2 particle-2 hole (2p2h) states from different point of view from reaction models. We studied nuclear excitations created by 1-body and 2-body external fields and discuss transitions between 1p1h and 2p2h states obtained by the SRPA approach.