Systematic investigation of the elastic proton-deuteron differential cross section at intermediate energies

Details Systematic investigation of the elastic proton-deuteron differential cross section at intermediate energies Systematic investigation of the elastic proton-deuteron differential cross section at intermediate energies

2003-08-15

arxiv.org/abs/nucl-ex/0308012v1

Phys.Rev. C68 (2003) 051001

Physics

Nuclear Physics

Nuclear Experiment

Scientific paper

10.1103/PhysRevC.68.051001

To investigate the importance of three-nucleon forces (3NF) systematically over a broad range of intermediate energies, the differential cross sections of elastic proton-deuteron scattering have been measured at proton bombarding energies of 108, 120, 135, 150, 170 and 190 MeV at center-of-mass angles between $30^\circ$ and $170^\circ$. Comparisons with Faddeev calculations show unambiguously the shortcomings of calculations employing only two-body forces and the necessity of including 3NF. They also show the limitations of the latest few-nucleon calculations at backward angles, especially at higher beam energies. Some of these discrepancies could be partially due to relativistic effects. Data at lowest energy are also compared with a recent calculation based on \chipt.

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