The light scalar Higgs boson h and the pseudoscalar Higgs boson A of the minimal supersymmetric standard model have been searched for in the processes e+e-→hff and e+e-→hA using data collected by ALEPH at the LEP e+e- collider, with center of mass energies at and near the Z peak. Using a variety of signatures adapted to various mass ranges for h and A, we have excluded a large domain in the parameter space. For large values of ν2 ν1, the ratio of the vacuum expectation values of the two Higgs fields, the whole range from 0 to 38.8 GeV is excluded for Mh and MA at 95% CL.

Search for neutral Higgs bosons from supersymmetry in Z decays / Decamp, D., Deschizeaux, B., Lees, J.-P., Minard, M.-N., Crespo, J.M., Delfino, M., Fernandez, E., Martinez, M., Miquel, R., Mir, Ll.M., Orteu, S., Pacheco, A., Perlas, J.A., Tubau, E., Catanesi, M.G., de Palma, M., Farilla, A., Iaselli, G., Maggi, G., Natali, S., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 237:2(1990), pp. 291-302. [10.1016/0370-2693(90)91447-J]

Search for neutral Higgs bosons from supersymmetry in Z decays

Iaselli, G.;Maggi, G.;
1990

Abstract

The light scalar Higgs boson h and the pseudoscalar Higgs boson A of the minimal supersymmetric standard model have been searched for in the processes e+e-→hff and e+e-→hA using data collected by ALEPH at the LEP e+e- collider, with center of mass energies at and near the Z peak. Using a variety of signatures adapted to various mass ranges for h and A, we have excluded a large domain in the parameter space. For large values of ν2 ν1, the ratio of the vacuum expectation values of the two Higgs fields, the whole range from 0 to 38.8 GeV is excluded for Mh and MA at 95% CL.
1990
Search for neutral Higgs bosons from supersymmetry in Z decays / Decamp, D., Deschizeaux, B., Lees, J.-P., Minard, M.-N., Crespo, J.M., Delfino, M., Fernandez, E., Martinez, M., Miquel, R., Mir, Ll.M., Orteu, S., Pacheco, A., Perlas, J.A., Tubau, E., Catanesi, M.G., de Palma, M., Farilla, A., Iaselli, G., Maggi, G., Natali, S., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 237:2(1990), pp. 291-302. [10.1016/0370-2693(90)91447-J]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/7694
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