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.
|Titolo:||Search for neutral Higgs bosons from supersymmetry in Z decays|
|Data di pubblicazione:||1990|
|Digital Object Identifier (DOI):||10.1016/0370-2693(90)91447-J|
|Appare nelle tipologie:||1.1 Articolo in rivista|