4 research outputs found
Spin dependence of the antinucleon-nucleon interaction
The status of our present knowledge on the antinucleon-nucleon interaction at
low and medium energies is discussed. Special emphasis is put on aspects
related to its spin dependence which are relevant for experiments planned by
the PAX collaboration. Predictions for the spin-dependent antiproton-proton
cross sections sigma_1 and sigma_2 are presented, utilizing antinucleon-nucleon
potential models developed by the Juelich group, and compared to results based
on the amplitudes of the Nijmegen partial-wave analysis.Comment: 8 pages, 4 figures, to appear in the proceedings of the 19th
International Spin Physics Symposium, September 27 - October 2, 2010,
Juelich, German
Spin-dependent pbar-d cross sections at low and intermediate energies
Antiproton-deuteron () scattering is calculated at beam energies
below 300 MeV within the Glauber approach, utilizing the amplitudes of the
J\"ulich models. A good agreement is obtained with available
experimental data on upolarized differential and integrated cross
sections. Predictions for polarized total cross sections are
presented, obtained within the single scattering approximation including
Coulomb-nuclear interference effects. It is found that the total longitudinal
and transversal cross sections are comparable in absolute value to
those for scattering.
The kinetics of polarization buildup is considered.Comment: 8 pages, 5 figures, to appear in proceedings of the 19th
international Spin Physics Symposium, September 27 - October 2, 2010,
Juelich, German