We present a search for neutral Higgs bosons ϕ decaying into
bb̅ , produced in association with b quarks in pp̅ collisions. This
process could be observable in supersymmetric models with high values of
tanβ. The event sample corresponds to 2.6 fb-1 of integrated
luminosity collected with the CDF II detector at the Fermilab Tevatron
collider. We search for an enhancement in the mass of the two leading
jets in events with three jets identified as coming from b quarks using a
displaced vertex algorithm. A data-driven procedure is used to estimate
the dijet mass spectrum of the nonresonant multijet background. The
contributions of backgrounds and a possible Higgs boson signal are
determined by a two-dimensional fit of the data, using the dijet mass
together with an additional variable which is sensitive to the flavor
composition of the three tagged jets. We set mass-dependent limits on
σ(pp̅ →ϕb)×B(ϕ→bb̅ ) which are applicable for a narrow scalar
particle ϕ produced in association with b quarks. We also set limits
on tanβ in supersymmetric Higgs models including the effects of the
Higgs boson width.
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Updated: Wednesday, 2012 February 29 09:30:24 CST automatically from input from Stephanie A Schuler