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A Flavor independent Higgs boson search in e+ e- collisions at s**(1/2) up to 209-GeV

Research output: Contribution to journalJournal article


<mark>Journal publication date</mark>19/09/2002
<mark>Journal</mark>Physics Letters B
Issue number1-2
Number of pages10
Pages (from-to)25-34
<mark>Original language</mark>English


A search for the Higgsstrahlung process e+e−→HZ is carried out, covering decays of the Higgs boson into any quark pair, a gluon pair or a tau pair. The analysis is based on the 630 pb−1 of data collected by the ALEPH detector at LEP at centre-of-mass energies from 189 to 209 GeV. A 95% C.L. lower mass limit of 109.1 GeV/c2 is obtained for a Higgs boson cross section equal to that expected from the Standard Model if the Higgs boson decays exclusively into hadrons and/or taus, irrespective of the relative branching fractions.