The ab initio no-core shell model

TL;DR

This paper reviews the ab initio no-core shell model's applications in nuclear physics, including nuclear structure, reactions, and many-boson systems, highlighting recent developments and universal aspects.

Contribution

It introduces new formalism for open channels and nuclear reactions within the NCSM and extends its application to many-boson problems in traps.

Findings

Successful application to A=12 isobar with chiral interactions

Development of NCSM formalism for open channels and reactions

Extension of NCSM to many-boson systems in traps

Abstract

This contribution reviews a number of applications of the ab initio no-core shell model (NCSM) within nuclear physics and beyond. We will highlight a nuclear-structure study of the A = 12 isobar using a chiral NN + 3NF interaction. In the spirit of this workshop we will also mention the new development of the NCSM formalism to describe open channels and to approach the problem of nuclear reactions. Finally, we will illustrate the universality of the many-body problem by presenting the recent adaptation of the NCSM effective-interaction approach to study the many-boson problem in an external trapping potential with short-range interactions.