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+νττ- ν¯τ, cs¯τ- ν¯τ/c¯sτ+ντ and cs¯sc¯ final states. No evidence for a signal is found. Mass limits are set as a function of the branching fraction B(H+-->τ+ντ). Under the assumption that the decay modes considered cover the totality of the possible final states, charged Higgs bosons with masses below 59 GeV/c2 are excluded at 95% C.L. independently of B(H+-->τ+ντ).

Search for charged Higgs bosons in e+e− collisions at = 181–184 GeV / R., B., D., D., P., G., C., G., S., J., J. P., L., F., M., E., M., M. N., M., J. Y., N., B., P., R., A., M. P., C., M., C., J. M., C., M., D., E., F., M., F.B., Garrido, L.l., E., G., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 450:(1999), pp. 467-478. [10.1016/S0370-2693(99)00149-5]

Search for charged Higgs bosons in e+e− collisions at = 181–184 GeV

GREGORIO, ANNA;GIANNINI, GIANROSSANO;
1999-01-01

Abstract

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+νττ- ν¯τ, cs¯τ- ν¯τ/c¯sτ+ντ and cs¯sc¯ final states. No evidence for a signal is found. Mass limits are set as a function of the branching fraction B(H+-->τ+ντ). Under the assumption that the decay modes considered cover the totality of the possible final states, charged Higgs bosons with masses below 59 GeV/c2 are excluded at 95% C.L. independently of B(H+-->τ+ντ).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2561060
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