Search for charged Higgs bosons in e+e- collisions at energies up to sqrt(s) = 209GeV

Details Search for charged Higgs bosons in e+e- collisions at energies up to sqrt(s) = 209GeV Search for charged Higgs bosons in e+e- collisions at energies up to sqrt(s) = 209GeV

2002-07-23

arxiv.org/abs/hep-ex/0207054v1

Phys.Lett.B543:1-13,2002

Physics

High Energy Physics

High Energy Physics - Experiment

12 pages, 5 figures

Scientific paper

10.1016/S0370-2693(02)02380-8

A search for charged Higgs bosons produced in pairs is performed with data collected at centre-of-mass energies ranging from 189 to 209 GeV by ALEPH at LEP, corresponding to a total luminosity of 629 invpb. The three final states taunutaunu, taunucs and cscs are considered. No evidence for a signal is found and lower limits are set on the mass M_H+ as a function of the branching fraction B(H to taunu). In the framework of a two-Higgs-doublet model, and assuming B(H+ to taunu + B(H+ to cs) = 1 charged Higgs bosons with masses below 79.3 Gev/c2 are excluded at 95% confidence level independently of the branching ratios.

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