Light Gluinos in Four-Jet Events at LEP

Abstract

The light gluino hypothesis can explain the apparent incompatibility between the measurements of $\as$ at low- and high-energy. Such gluinos are produced directlyin four-jet events, for which we perform a detailed analysis. Because the jet energies are not large, the effect of the non-zero gluino mass is important. We take the gluino mass into account in the computation of the cross sections and shape variables. As expected, we find that mass effects tend to reduce the impact of the gluinos in the cross section, weakening the bounds from obtaining assuming massless gluinos.

8pag. and 7 fig. in LATEX, Durham Preprint DTP/93/72

References in corpus (4)

• Perturbative QCD data are consistent with light gluinos
• Light Gluinos in $Z^0$ Decays?
• Best Fit to the Gluino Mass
• Light gluinos in high-Q2 deep inelastic scattering

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• Constraints on Light Gluinos from Tevatron Dijet Data
• Angular Correlations and Light Gluinos in Multi-jet Photoproduction at HERA
• Chasing the light-gluino scenario through $b\to s\gamma$
• Electroproduction and Hadroproduction of Light Gluinos