  We report results from a search for neutral Higgs bosons produced in
association with b quarks using data recorded by the D0 experiment at the
Fermilab Tevatron Collider and corresponding to an integrated luminosity of 7.3
fb-1. This production mode can be enhanced in several extensions of the
standard model (SM) such as in its minimal supersymmetric extension (MSSM) at
high tanBeta. We search for Higgs bosons decaying to tau pairs with one tau
decaying to a muon and neutrinos and the other to hadrons. The data are found
to be consistent with SM expectations, and we set upper limits on the cross
section times branching ratio in the Higgs boson mass range from 90 to 320
GeV/c2. We interpret our result in the MSSM parameter space, excluding tanBeta
values down to 25 for Higgs boson masses below 170 GeV/c2.
