Maris polarization in neutron-rich nuclei

Shubhchintak Shubhchintak,C.A Bertulani,T Aumann

doi:10.1016/j.physletb.2017.12.067

Abstract

We present a theoretical study of the Maris polarization effect and its application in quasi-free reactions to assess information on the structure of exotic nuclei. In particular, we explore the dependence of the polarization effect on neutron excess and neutron-skin thickness. We discuss the uncertainties in the calculations of triple differential cross sections and of analyzing powers due the choices of various nucleon–nucleon interactions and optical potentials and the limitations of the method. Our study implies that polarization variables in (p, 2p) reactions in inverse kinematics can be an effective probe of single-particle structure of nuclei in radioactive-beam facilities.

Highlights

We present a theoretical study of the Maris polarization effect and its application in quasi-free reactions to assess information on the structure of exotic nuclei
Our study implies that polarization variables in (p,2p) reactions in inverse kinematics can be an effective probe of single-particle structure of nuclei in radioactive-beam facilities
With the availability of highenergy radioactive beams, quasifree (p,2p) and (p,pn) reactions in inverse kinematics have again become an experimental tool of choice to study nuclear spectroscopy

Summary

Introduction

We present a theoretical study of the Maris polarization effect and its application in quasi-free reactions to assess information on the structure of exotic nuclei. Our calculations explore a large number of choices for the nucleon-nucleon (NN) interactions and the optical potential for nucleon-nucleus scattering. The optical potential dependence on the L · S spin-orbit term combined with absorption will impact on the polarization changes from near and far side scattering (part (a) of Figure 1).

Results

Conclusion