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Relativistic effects in the 3N continuum and the Ay puzzle
Journal article   Open access   Peer reviewed

Relativistic effects in the 3N continuum and the Ay puzzle

H. Witała, J. Golak, R. Skibiński, H. Kamada, W. Glöckle and W. N. Polyzou
Few-body systems, Vol.44(1-4), pp.15-17
2008
DOI: 10.1007/s00601-008-0246-2
url
https://ruj.uj.edu.pl/xmlui/handle/item/62734View
Open Access

Abstract

The three-nucleon (3 N ) Faddeev equation is solved in a Poincaré-invariant model of the three-nucleon system. Two-body interactions are generated so that when they are added to the two-nucleon invariant mass operator (rest energy) the two-nucleon S -matrix is identical to the non-relativistic S -matrix with a CD Bonn interaction. Cluster properties of the three-nucleon S -matrix determine how these two-nucleon interactions are embedded in the three-nucleon mass operator. Differences in the predictions of the relativistic and corresponding non-relativistic models for elastic and breakup processes are investigated. Of special interest are the lowering of the A y maximum in elastic nucleon-deuteron ( Nd ) scattering below ≈25 MeV caused by the Wigner spin rotations and the significant changes of the breakup cross sections in certain regions of the phase space.
Article Atomic Hadrons Heavy Ions Molecular Nuclear Physics Optical and Plasma Physics Particle and Nuclear Physics Physics Physics and Astronomy

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