Fully microscopic description of elastic and inelastic scattering at intermediate incident energies

Kosho Minomo,Masakazu Toyokawa,Michio Kohno,Kazuyuki Ogata,Masanobu Yahiro,T Kawano,M.W Paris,S Chiba,P Talou

doi:10.1051/epjconf/201612207001

Kosho Minomo, Masakazu Toyokawa + Show 7 more

Open Access

https://doi.org/10.1051/epjconf/201612207001

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Abstract

We aim for fully microscopic understanding of many-body nuclear reactions starting from two- and three-nucleon forces based on chiral effective field theory (Ch-EFT). We first construct a g -matrix with the nuclear forces based on Ch-EFT using Brueckner-Hartree-Fock theory, in which the three-nucleon force effects are represented through the density dependence of the g-matrix. Then, the folding model and microscopic coupled-channels method with the g -matrix are applied to nucleon-nucleus and nucleus-nucleus scattering at intermediate incident energies. This new microscopic framework well describes the elastic and inelastic cross sections with no ad-hoc parameters. In addition, the three-nucleon force and coupled-channels effects on many-body nuclear reactions are clarified.

Highlights

The microscopic description of many-body nuclear reactions is a fundamental subject in nuclear physics
We introduce a new microscopic reaction theory starting from two- and three-nucleon forces based on chiral effective field theory (Ch-EFT) [13,14,15]
We first construct a g-matrix with the nuclear forces based on Ch-EFT using Brueckner-Hartree-Fock theory, in which the three-nucleon force effects are represented through the density dependence of the g-matrix

Summary

Introduction

The microscopic description of many-body nuclear reactions is a fundamental subject in nuclear physics For this purpose, construction of microscopic optical potentials for nucleon-nucleus and nucleus-nucleus scattering is important. The Melbourne group achieved a great success by describing proton scattering with no adjustable parameter. They applied a g-matrix interaction constructed with the Bonn potential [4] to the folding model calculation, and reproduced the measured elastic cross sections and vector analyzing powers in a wide incident-energy range [5]. In spite of the remarkable progress of microscopic reaction theory in recent years, nucleus-nucleus elastic cross sections cannot be well reproduced in some cases [11]. The 3NF effects on scattering observables are discussed in nuclear physics [12]

Objectives

Conclusion