We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


97% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Search for charged Higgs bosons in $e^+ e^-$ co...
View graph of relations

« Back

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

Research output: Contribution to journalJournal article


<mark>Journal publication date</mark>5/09/2002
<mark>Journal</mark>Physics Letters B
Number of pages13
<mark>Original language</mark>English


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 pb−1. The three final states , and are considered. No evidence for a signal is found and lower limits are set on the mass mH± as a function of the branching fraction . In the framework of a two-Higgs-doublet model, and assuming , charged Higgs bosons with masses below 79.3 GeV/c2 are excluded at 95% confidence level independently of the branching ratios.