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25 April 2024

» arxiv » nucl-ex/0308012

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Systematic investigation of the elastic proton-deuteron differential cross section at intermediate energies
K. Ermisch ; H.R. Amir-Ahmadi ; A.M. van den Berg ; R. Castelijns ; B. Davids ; E. Epelbaum ; E. Van Garderen ; W. Gloeckle ; J. Golak ; M.N. Harakeh ; M.A. de Huu ; N. Kalantar-Nayestanaki ; H. Kamada ; M. Kis ; M. Mahjour-Shafiei ; A. Nogga ; R. Skibinski ; H. Witala ; H.J. Woertche ;
Date:	15 Aug 2003
Journal:	Phys.Rev. C68 (2003) 051001
Subject:	nucl-ex
Abstract:	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.
Source:	arXiv, nucl-ex/0308012
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