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Relativistic effects in exclusive pd breakup scattering at intermediate energies
Journal article   Open access   Peer reviewed

Relativistic effects in exclusive pd breakup scattering at intermediate energies

T Lin, Ch Elster, W Polyzou and W Gloeckle
Physics letters. B Nuclear, elementary particle and high-energy physics, Vol.660(4), pp.345-349
02/28/2008
DOI: 10.1016/j.physletb.2008.01.012

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Abstract

The relativistic Faddeev equation for three-nucleon scattering is formulated in momentum space and directly solved in terms of momentum vectors without employing a partial wave decomposition. Relativistic invariance is achieved by constructing a dynamical unitary representation of the Poincaré group on the three-nucleon Hilbert space. The exclusive breakup reaction at 508 MeV is calculated based on a Malfliet-Tjon type of two-body interaction and the cross sections are compared to measured cross sections at this energy. We find that the magnitude of the relativistic effects can be quite large and depends on the configurations considered. In spite of the simple nature of the model interaction, the experimental cross sections are in surprisingly good agreement with the predictions of the relativistic calculations. We also find that although for specific configurations the multiple scattering series converges rapidly, this is in general not the case.
Scattering Breakup Configurations Cross-sections Faddeev equations Hilbert space Momentum Relativism Relativistic effects

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