Q: How does the tanβ exclusion results compare to the Higgs→bb
channel?
A: There is no interpretation of the Higgs→bb
results for the benchmark
scenarios at hadron colliders.
Q: B(Higgs→bb) is much larger... how can
the di-tau channel be competitive?
A: The di-tau channel allows searches for inclusive Higgs production.
At this time, bb is restricted to production in association with one or two
b-quarks to suppress large multi-jet backgrounds.
Q: Are there any projections for higher luminosities?
A: Yes. Look in the Projections section for more information.
Q: Does CDF have a result for the bb channel?
A: The results are expected to be made public in late summer/early
autumn '05.
Q: What is mvis and why does the Z peak appear at
lower mass?
A: mvis is a
discriminating variable (look in the Public Note for definition) and
involves partial mass reconstruction.
Q: Why don't you use full mass reconstruction by projecting missing
transverse energy on the directions of the visible tau decay products?
A: This method works for cases of significant recoil of Higgs against
jets. At the current data size, the benefits are offset by large loss of
efficiency (factor of 6-7). We are working on methods that combine the two
approaches.
Q: What changed in the update of the results?
A: The search region was extended
down to mA=90 GeV,
the cross sections for gluon fusion take into account radiative corrections.