Application of the JISP16 potential to the nucleon induced deuteron breakup process at E=13 MeV and E=65 MeV

Volodymyr Soloviov,Kacper Topolnicki,Jacek Golak,Henryk Witała,Roman Skibiński

doi:10.21468/scipostphysproc.3.032

Volodymyr Soloviov, Kacper Topolnicki + Show 3 more

Open Access

https://doi.org/10.21468/scipostphysproc.3.032

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Journal: SciPost Physics Proceedings	Publication Date: Feb 26, 2020
License type: CC BY 4.0

Affiliation: Jagiellonian University

Abstract

The JISP16 nucleon-nucleon potential has been applied to investigations of the nucleon induced deuteron breakup reaction at the incoming nucleon laboratory energies E = 13 MeV and E = 65 MeV. We have found that for the studied process the JISP16 force gives a description of the exclusive cross section, which is generally similar to the ones obtained with the standard realistic nucleon-nucleon AV18 interaction. However, there are some regions of the phase space where the differential cross sections predicted by the JISP16 and AV18 models, differ by more than 100 %. These special kinematical configurations may possibly be useful to refit the JISP16 force parameters.

Highlights

The JISP16 potential [1] is a model of the nucleon-nucleon (NN) interaction derived within the inverse scattering method
Recently Ref. [4] has shown that the JISP16 potential fails in the description of some observables in the elastic nucleon-deuteron scattering process
That at initial energy E=13 MeV, in some regions of the phase space the exclusive differential cross section predicted by the AV18 model is bigger than the one based on the JISP16 potential by more than 100%

Summary

Introduction

The JISP16 potential [1] is a model of the nucleon-nucleon (NN) interaction derived within the inverse scattering method. Its free parameters have been fixed by fitting to the NN phase shifts, as well as to the energies of bound and excited states of nuclei up to 16O. This method of fixing parameters was introduced to study many-nucleon systems without using many-nucleon interactions. [4] has shown that the JISP16 potential fails in the description of some observables in the elastic nucleon-deuteron scattering process. The reason for such behaviour was traced back to the P-wave components of the JISP16 model. The expected three-nucleon force effects at the incoming nucleon energy E=13 MeV are negligible and at E=65 MeV remains below approx. 5% at the most of the phase space, reaching approx. 20% only for some specific configurations [5]

Methods

Results

Conclusion