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 signatures for the reactions e+e- -> chi chi' and e+e- -> chi' chi' where chi is the lightest neutralino and chi' any heavier one. The data sample used for these searches corresponds to about 23000 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.

D., D., B., D., C., G., J. P., L., M. N., M., J. M., C., et al. (1990). Search For Neutralino Production In Z Decays. PHYSICS LETTERS. SECTION B, 244(3-4), 541-550 [10.1016/0370-2693(90)90361-9].

Search For Neutralino Production In Z Decays

CIOCCI, MARIA AGNESE;BOTTIGLI, UBALDO;MARROCCHESI, PIER SIMONE;
1990-01-01

Abstract

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 signatures for the reactions e+e- -> chi chi' and e+e- -> chi' chi' where chi is the lightest neutralino and chi' any heavier one. The data sample used for these searches corresponds to about 23000 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.
1990
D., D., B., D., C., G., J. P., L., M. N., M., J. M., C., et al. (1990). Search For Neutralino Production In Z Decays. PHYSICS LETTERS. SECTION B, 244(3-4), 541-550 [10.1016/0370-2693(90)90361-9].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/38806
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