Author/Authors :
DELPHI Collaboration، نويسنده , , J. Abdallah، نويسنده , , P. Abreu، نويسنده , , W. Adam، نويسنده , , P. Adzic، نويسنده , , T. Albrecht، نويسنده , , T. Alderweireld، نويسنده , , R. Alemany-Fernandez، نويسنده , , T. Allmendinger، نويسنده , , P.P. Allport، نويسنده , , S. Almehed، نويسنده , , U. Amaldi، نويسنده , , N. Amapane، نويسنده , , S. Amato، نويسنده , , E. Anashkin، نويسنده , , A. Andreazza، نويسنده , , S. Andringa، نويسنده , , N. Anjos، نويسنده , , P. Antilogus، نويسنده , , W.-D. Apel، نويسنده , , et al.، نويسنده ,
Abstract :
A search for pair-produced charged Higgs bosons was performed in the high energy data collected by the DELPHI detector at LEP II at centre-of-mass energies from 189 GeV to 202 GeV. The three different final states, τντν, cs̄c̄s and cs̄τν were considered. New methods were applied to reject wrong hadronic jet pairings and for the tau identification, where a discriminator based on tau polarisation and polar angles was used. No excess of data compared to the expected Standard Model processes was observed and the existence of a charged Higgs boson with mass lower than 71.5 GeV/c2 is excluded at the 95% confidence level.
