Skip to main content
eScholarship
Open Access Publications from the University of California

UC Irvine

UC Irvine Previously Published Works bannerUC Irvine

Observation of Ω- Production in e+e- Annihilation at 29 GeV

Abstract

Inclusive Ω- production in e+e- annihilation at 29 GeV has been measured with the Mark II detector. From an integrated luminosity of 207 pb-1, we determine a production rate of 0.014±0.006±0.004 Ω-, Ω¯+ per hadronic event. This is roughly 35 times the Lund-model prediction of 0.0004 Ω-, Ω¯+ per hadronic event, but comparable to the Webber-model prediction of 0.006 Ω-, Ω¯+ per hadronic event. The large rate of Ω- production, compared with production rates for other baryons, and with theoretical predictions based on diquark models, indicates that spin suppression does not hold for Ω- production.

Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.