Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2007-08-11
Physics
Nuclear Physics
Nuclear Theory
5 pages, 5 figures, Proceeding of the Third Asia-Pacific Conference on Few-Body Problem in Physics, Nakhon Ratchasima, Thailan
Scientific paper
By means of a technique, which does not employ partial wave (PW) decompositions, the nucleon-deuteron break-up process is evaluated in the Faddeev scheme, where only the leading order term of the amplitude is considered. This technique is then applied to calculate the semi-exclusive proton-deuteron break-up reaction d(p,n)pp for proton laboratory energies Elab of a few hundred MeV. A comparison with PW calculations is performed at 197 MeV projectile energy. At the same energy rescattering processes, which are not included in the 3D calculations yet, are shown to be still important in the full Faddeev PW calculations, especially for the cross section and the analyzing power Ay. Next, kinematical relativistic effects are investigated for projectile energies up to about 500 MeV. At the higher energies, those relativistic effects start not to be negligible, especially in the peak of the cross section.
Elster Ch.
Fachruddin Imam
Gloeckle Walter
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