Search for a Very Light CP-Odd Higgs Boson in Top Quark Decays from p-anti-p Collisions at 1.96 TeV

CDF Collaboration

We present the results of a search for a very light CP-odd Higgs boson $a_1^0$ originating from top quark decays t -> H^+ b -> W^+ a_1^0 b, and subsequently decaying into tau-tau.…