Search for Higgs Bosons Produced in Association with b-Quarks
(CDF
Collaboration)
Corresponding Authors:
Tom Wright and Dan Amidei, University of Michigan
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Abstract
We present a search for neutral Higgs bosons φ decaying into
bb, produced in
association with b quarks in pp collisions. This process could be observable in
supersymmetric models with high values of tanβ. The event sample
corresponds to 2.6/f 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 non-resonant 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 &sigma x
BR(φ→bb) 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.
Supporting Documents