Searching for (intermediate mass) Higgs bosons through b' decays

Abstract Flavour changing b'→rb decays, in particular b'→bH, could be substantial. If b' → b γ is observed, m H > m b' − m b is implied. If the top quark is heavy, for a broad range in the parameter space of m b' , m t , and V cb' , V tb' , etc., b' → bH is at a comparable rate with b' → c and/or b' →bZ. The latter may provide tags heavy flavour production via isolated l ± or l + l l − ( M ll = M Z , and one can search for Higgs boson signals in the decay of the associated b' quark. The scenario is valid also for Higgs bosons in the intermediate mass region.