Heavy Hyperon-Antihyperon Production.

Based on the experience from the production of light antihyperon-hyperon (ΛΛ, ΣΣ) pairs at LEAR (experiment PS185) it is suggested to continue the investigations towards the heavier antihyperon-hyperon pairs [cap_xi][cap_xi] and ΩΩ in view of: 1. the production dynamics of the heavier antihyperon-hyperon out of the pp annihilation 2. a comparison of the “(3 s) (3 s)”- quark system ΩΩ to the 3 (ss) = 3 [lowercase_phi_synonym] meson production, where both systems the ΩΩ and the 3 [lowercase_phi_synonym] have similar masses (3.345 and 3.057, respectively) and identical valence quark content. A systematic study of the antihyperon-hyperon production with increasing strangeness content is interesting for the following reasons: The ΩΩ production is the creation of two spin 3/2 objects out of the two spin 1/2 pp particles. Results of the PS185 experiments prove a clear dominance of the spin triplet ss dissociation. In the Ω(Ω) the three s-quarks (three s-quarks) are aligned to spin 3/2 each. If the three ss pairs are now all in spin triplet configurations when created out of the gluonic interaction they should have spin parity quantum number as 3- as long as ΩΩ is created with relative L = 0 angular momentum. The comparison of the ΩΩ baryon pair to the [lowercase_phi_synonym][lowercase_phi_synonym][lowercase_phi_synonym] three meson production (where the three ss quark pairs might not but can be produced without relative correlation) would provide a unique determination of the intermediate matter state. Measurements of excitation functions and polarization transfers should be used to examine these gluon rich pp → ΩΩ and pp → [lowercase_phi_synonym][lowercase_phi_synonym][lowercase_phi_synonym] reaction channels. Such experiments should be performed at the PANDA detector at the FAIR facility of the GSI. © 2005 American Institute of Physics [ABSTRACT FROM AUTHOR]