# Search for charged Higgs bosons in $e^+ e^-$ collisions at energies up to $\sqrt{s}$ = 209 GeV

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.
Document type :
Journal articles

Cited literature [20 references]

http://hal.in2p3.fr/in2p3-00011834
Contributor : Magali Damoiseaux Connect in order to contact the contributor
Submitted on : Thursday, October 3, 2002 - 3:08:55 PM
Last modification on : Tuesday, October 19, 2021 - 10:50:10 PM
Long-term archiving on: : Tuesday, June 2, 2015 - 12:31:44 PM

### Identifiers

• HAL Id : in2p3-00011834, version 1

### Citation

A. Heister, S. Schael, R. Barate, R. Bruneliere, I. de Bonis, et al.. Search for charged Higgs bosons in $e^+ e^-$ collisions at energies up to $\sqrt{s}$ = 209 GeV. Physics Letters B, Elsevier, 2002, 543, pp.1-13. ⟨in2p3-00011834⟩

Record views