Search for Neutralino Production in Z Decays
Collaboration
10 pages
Published in:
- Phys.Lett.B 244 (1990) 541-550
- Published: 1990
Report number:
- CERN-EP/90-63
Experiments:
View in:
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Abstract: (Elsevier)
Limits on Z decay branching ratios into neutralinos are reported. They were obtained from searches for monojets, acoplanar jets, acoplanar lepton pairs, single photons and acoplanar photon pairs as signaturs for the reactions e + e - → χχ ′ and e + e - → χχ ′, where χ is the lightest neutralino and χ ′ any heavier one. The data sample used for these searches corresponds to about 23 000 events of Z decay into multihadrons, collected at LEP by the ALEPH detector for centre of mass energies at and near the Z peak. The results obtained are used to restrict the parameter space of the minimal supersymmetric standard model.- electron positron: colliding beams
- colliding beams: electron positron
- electron positron: annihilation
- annihilation: electron positron
- Z0: electroproduction
- electroproduction: Z0
- Z0: decay modes
- decay modes: Z0
- sparticle: search for
- sparticle: neutral particle
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