Heavy Hyperon--Antihyperon Production

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dc.creatorOelert, W.
dc.creatorGrzonka, D.
dc.creatorJarczyk, L.
dc.creatorKilian, K.
dc.creatorMoskal, P.
dc.creatorWinter, P.
dc.date2005-08-01
dc.date.accessioned2026-07-07T12:54:21Z
dc.date.available2026-07-07T12:54:21Z
dc.descriptionBased on the experience from the production of anti-Lambda Lambda and anti-Sigma Sigma pairs at LEAR (experiment PS185) it is suggested to continue the investigations towards the heavier antihyperon--hyperon pairs anti-Xi Xi and anti-Omega Omega in view of: (1) the production dynamics of the heavier antihyperon--hyperon out of the anti-p p annihilation (2) a comparison of the (3s 3anti-s quark system) anti-Omega Omega to the (3 (anti-s s)) 3 phi meson production, where both systems 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 anti-Omega Omega production is the creation of two spin 3/2 objects out of the two spin 1/2 anti-p p particles. Results of the PS185 experiments prove a clear dominance of the spin triplet anti-s s dissociation. In the Omega anti-Omega the three s-quarks (three anti-s quarks) are aligned to spin 3/2 each. If the three anti-s s 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 Omega anti-Omega is created with relative L=0 angular momentum. The comparison of the Omega anti-Omega baryon pair to the phi phi phi three meson production (where the three anti-s s 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 anti-p p --> anti-Omega Omega and anti-p p --> phi phi phi reaction channels. Such experiments should be performed at the PANDA detector at the FAIR facility of the GSI.
dc.description4 pages, 2 figures, Presented at LEAP05: International Conference on Low Energy Antiproton Physics, Bonn - Juelich, Germany, May 16-22, 2005
dc.identifierhttps://arxiv.org/abs/hep-ex/0508006
dc.identifierhttp://arxiv.org/abs/hep-ex/0508006
dc.identifierAIP Conf.Proc.796:172-175,2005
dc.identifierdoi:10.1063/1.2130158
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/223905
dc.subjectHigh Energy Physics - Experiment
dc.titleHeavy Hyperon--Antihyperon Production
dc.typetext

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