Vanessa Hepp

Learn More
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric standard model (MSSM). The data of the four collaborations are statistically combined and examined for their consistency with the background hypothesis and with a possible Higgs boson signal. The combined LEP(More)
The cross sections and forward-backward asymmetries of hadronic and leptonic events produced in ee collisions at centre-of-mass energies from 130 to 183 GeV are presented. Results for ee, μμ, ττ, qq̄, bb̄ and cc̄ production show no significant deviation from the Standard Model predictions. This enables constraints to be set upon physics beyond the Standard(More)
The data set collected with the ALEPH detector from 1991 to 1995 at LEP has been analysed to measure the charm forward-backward asymmetry at the Z. Out of a total of 4.1 million hadronic Z decays, about 36000 high momentum D * + , D + and D 0 decays were reconstructed, of which 80% originate from Z → c¯ c events. The forward-backward asymmetry was measured(More)
BACKGROUND Facing longer follow-up of patients after Fontan operation, Fontan conversion was proposed to treat failing Fontan circulation. We reviewed our patients who reached up to 42 years of age. METHODS Fifteen consecutive patients underwent Fontan conversion to extracardiac conduit combined with biatrial maze procedure between October 2006 and(More)
Data collected at centre-of-mass energies of 181–184 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 56.9 pb −1 , are analysed in a search for pair-produced charged Higgs bosons H ±. Three analyses are employed to select the τ + ν τ τ − ¯ ν τ , c¯ sτ − ¯ ν τ /¯ csτ + ν τ and c¯ ss¯ c final states. No evidence for a signal is found. Mass(More)