Exploring three nucleon forces with nucleon-deuteron scattering

摘要

Recent progress on three nucleon force study with three nucleon scattering at intermediate energies (E/A approximate to 100 MeV) is presented, especially focusing on the experimental work on deuteron-proton elastic scattering and breakup reactions at RIKEN. The first signature of three nucleon forces is identified in the cross section minimum for deuteron-proton elastic scattering by direct comparison between the precise data and state of the art Faddeev calculations based on the nucleon-nucleon forces plus the 2 pi-exchange three nucleon forces. However the polarization observables are not always properly described by adding the three nucleon forces, indicating that components other than 2 pi-exchange three nucleon forces are required to describe the data.