Abstract
The cross-section times branching ratio of the Higgs boson decaying to tau final state in the Standard Model (SM) is too small to play any role in the SM Higgs boson searches.This, however, is different in the Minimal Supersymmetric Standard Model (MSSM), which predicts two Higgs doublets leading to five Higgs bosons: a pair of charged Higgs boson; two neutral CP-even Higgs bosons (h,H) and a CP-odd Higgs boson (A). A search for the production of neutral Higgs bosons decaying into tau final states in ppbar collisions at a centre-of-mass energy of 1.96 TeV is presented in this thesis. One of the two tau leptons is required to decay into a muon while the other decays hadronically. The integrated luminosity is L = 1.0-5.36 fb?1, collected by the Dzero experiment at the Fermilab Tevatron Collider from 2002 to 2009 in the Run II.
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