Search for Higgs Bosons Decaying into Tau Pairs in pp bar Collisions at D0

摘要

A search for neutral Higgs bosons decaying into tau pairs is presented using data in p(bar p) collisions at (radical)s = 1.96 TeV. One of the tau leptons is identified via its decay into an electron or muon and the other via its decay into a hadronic final state. The data, corresponding to an integrated luminosity of around 1.0 fb(sup -1), were collected with the D0 detector at the Fermilab Tevatron collider between April 2002 and February 2006. No significant excess of events above the background expectation is observed and limits on the cross section times branching ratio for neutral Higgs bosons decaying into tau pairs, p(bar p) (yields) (phi) (yields) (tau)(sup +)(tau)(sup -), are set. The cross section limits are interpreted as exclusions in the parameter space of the minimal supersymmetric Standard Model, resulting in exclusions in the range 40