Selectivity of the nucleon-induced deuteron breakup and relativistic effects

H Witała,J Golak,R Skibiński

doi:10.1016/j.physletb.2006.01.070

Abstract

Theoretical predictions for the nucleon-induced deuteron breakup process based on solutions of the three-nucleon Faddeev equation including such relativistic features as the relativistic kinematics and boost effects are presented. Large changes of the breakup cross section in some complete configurations are found at higher energies. The predicted relativistic effects, which are mostly of dynamical origin, seem to be supported by existing data.

Highlights

Theoretical predictions for the nucleon-induced deuteron breakup process based on solutions of the three-nucleon Faddeev equation including such relativistic features as the relativistic kinematics and boost effects are presented
Recent studies of elastic nucleon–deuteron (Nd) scattering and nucleon-induced deuteron breakup revealed a number of cases where the nonrelativistic description based only on pairwise nucleon–nucleon (NN) forces is insufficient to explain the three-nucleon (3N) data. This happens in spite of the fact, that these high precision NN potentials describe very well the NN data set to about 350 MeV laboratory energy
The studied discrepancies between a theory based only on NN potentials and experiment become larger for increasing energy of the 3N system

Summary

Introduction

Theoretical predictions for the nucleon-induced deuteron breakup process based on solutions of the three-nucleon Faddeev equation including such relativistic features as the relativistic kinematics and boost effects are presented. Individually with each NN potential to the experimental binding energy of 3H and 3He. At energies higher than ≈100 MeV current 3NFs improve only partially the description of cross section data and the remaining discrepancies, which increase with energy, indicate the possibility of relativistic effects.

Results

Conclusion