The measured cross sections for K0s and Λ0 (Σ0) production in bar pA reactions at 607 MeV/c incident momentum and the number of quark recombinations give the cross section σ(sbar s) for strange particle production for target nuclei with A = 2, 4, 20 nucleons, respectively. The result favours the relation σ(sbar s) propto A1/3. Scattering of an antiquark off a virtual sbar s-pair, or gluon Bremsstrahlung emitted by scattering of an incident antiquark passing through nuclear matter, are possible processes consistent with this relation. Models inconsistent with this relation may be wrong.
Note On Sbar-production In Pbar-nucleus Reactions At 607 Mev/c Incident Momentum
BALESTRA, Ferruccio;BUSSA, Maria Pia;BUSSO, Luigi;FERRERO, Livio;GRASSO, Antonino;PANZIERI, Daniele;PIRAGINO, Guido;
1990-01-01
Abstract
The measured cross sections for K0s and Λ0 (Σ0) production in bar pA reactions at 607 MeV/c incident momentum and the number of quark recombinations give the cross section σ(sbar s) for strange particle production for target nuclei with A = 2, 4, 20 nucleons, respectively. The result favours the relation σ(sbar s) propto A1/3. Scattering of an antiquark off a virtual sbar s-pair, or gluon Bremsstrahlung emitted by scattering of an incident antiquark passing through nuclear matter, are possible processes consistent with this relation. Models inconsistent with this relation may be wrong.
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