A search for heavy stable charged particles produced in pairs in the decay of the neutral intermediate vector boson z

[摘要] A search for new stable charged particles produced in pairs in the decays of theintermediate vector boson Z is performed with the MARK II detector at the SLACLinear Collider. Particle masses are determined from momentum, ionization energyloss and time-of-flight measurements. No candidates for new particles are found. Alimit excluding the production of pairs of stable fourth generation charged leptonsand stable mirror fermions with masses between the muon mass and 36.3 GeV/c^2 isset at the 95% confidence level. The production of pairs of stable supersymmetricscalar leptons with masses between the muon mass and 32.6 GeV/c^2 is also excludedat the 95% confidence level under the assumption that the left- and right-handedscalar leptons are degenerate in mass.

[发布机构] University:California Institute of Technology;Department:Physics, Mathematics and Astronomy

[关键词] Physics