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We present the results of a search for Higgs bosons predicted in two-Higgs-doublet models, in the case where the Higgs bosons decay to tau lepton pairs, using 1.8fb-1 of integrated luminosity of pp̄ collisions recorded by the CDF II experiment at the Fermilab Tevatron. Studying the mass distribution in events where one or both tau leptons decay leptonically, no evidence for a Higgs boson signal is observed. The result is used to infer exclusion limits in the two-dimensional space of tan □ β versus mA (the ratio of the vacuum expectation values of the two Higgs doublets and the mass of the pseudoscalar boson, respectively). © 2009 The American Physical Society.

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Physical Review Letters