TY - JOUR
T1 - Antihyperon-hyperon production in low energy antiproton-proton reactions
AU - Kohno, M.
AU - Weise, W.
N1 - Funding Information:
+ Work supported in part by BMFT, grant MEP 0234 REA
PY - 1988
Y1 - 1988
N2 - Total cross sections, angular distributions and polarization observables for the process pp → ΛΛ and pp → ΛΣ° are analysed in a boson exchange model on one hand, and in a model based on quark-gluon exchange mechanisms on the other hand. A realistic treatment of strongly absorptive baryon-antibaryon distortions in the initial and final states turns out to be crucial. Once these are properly treated, the low energy observables can be described successfully in either model: meson exchange and quark-dynamical models turn out to be indistinguishable.
AB - Total cross sections, angular distributions and polarization observables for the process pp → ΛΛ and pp → ΛΣ° are analysed in a boson exchange model on one hand, and in a model based on quark-gluon exchange mechanisms on the other hand. A realistic treatment of strongly absorptive baryon-antibaryon distortions in the initial and final states turns out to be crucial. Once these are properly treated, the low energy observables can be described successfully in either model: meson exchange and quark-dynamical models turn out to be indistinguishable.
UR - http://www.scopus.com/inward/record.url?scp=4244041992&partnerID=8YFLogxK
U2 - 10.1016/0375-9474(88)90454-X
DO - 10.1016/0375-9474(88)90454-X
M3 - Article
AN - SCOPUS:4244041992
SN - 0375-9474
VL - 479
SP - 433
EP - 449
JO - Nuclear Physics, Section A
JF - Nuclear Physics, Section A
IS - C
ER -