Discovery Potential of h/A/H to tau+ tau- to l+l- 4nu

This note describes a study of the discovery potential for the supersymmetric Higgs bosons h/H/A in proton-proton collisions at a center-of-mass energy of 14 TeV in final states with tau lepton pairs with the ATLAS detector at the LHC. The Higgs bosons are produced in association with b quarks and decay into a tautau final state where both tau leptons decay leptonically. The signature of Higgs bosons with masses between 110 and 450 GeV is analyzed and the discovery potential is assessed. The analysis is based on an integrated luminosity of 30 fb−1. All results are obtained using full simulation of the ATLAS detector. No pile-up or cavern background has been considered in this analysis. In addition a procedure for estimating the shape and the normalization of the irreducible Z → tau+ tau- background from data is investigated. The discovery potential as a function of mA and tan beta is shown for the mh-max MSSM benchmark scenario.