Search for Associated Production of Z and Higgs Bosons in $\nu \bar{\nu}b\bar{b}$ Final States

Studies are presented from the D\O\ experiment at Fermilab for the search for a light Standard Model Higgs Boson in association with a $Z $ boson, which decays invisibly to $\nu\bar{\nu}$. This channel relies on the identification of two $b$-tagged jets from the Higgs Boson decay and on the measurement of a large imbalance in the transverse energy ($E_T$) of the event. This channel is challenging as the decay signatures are common in QCD and instrumental backgrounds.