A model-independent catalog of branching-ratio limits for singly and doubly charged scalars from LEP and LHC Drell-Yan data, organized by weak isospin.
Search for charged Higgs bosons in e+e- collisions at energies up to sqrt(s) = 209GeV
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abstract
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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Drell-Yan constraints on charged scalars: a weak isospin perspective
A model-independent catalog of branching-ratio limits for singly and doubly charged scalars from LEP and LHC Drell-Yan data, organized by weak isospin.