For large values of the minimal supergravity model parameter tanβ, the
tau lepton and the bottom quark Yukawa couplings become large, leading to
reduced masses of τ-sleptons and b-squarks relative to their first and
second generation counterparts, and to enhanced decays of charginos and
neutralinos to τ-leptons and b-quarks. We evaluate the reach of the CERN
LHC pp collider for supersymmetry in the mSUGRA model parameter space. We
find that values of mtg∼1500−2000 GeV can be probed with just 10
fb−1 of integrated luminosity for tanβ values as high as 45, so
that mSUGRA cannot escape the scrutiny of LHC experiments by virtue of having a
large value of tanβ. We also perform a case study of an mSUGRA model at
tanβ=45 where \tz_2\to \tau\ttau_1 and \tw_1\to \ttau_1\nu_\tau
with ∼100 branching fraction. In this case, at least within our
simplistic study, we show that a di-tau mass edge, which determines the value
of m_{\tz_2}-m_{\tz_1}, can still be reconstructed. This information can be
used as a starting point for reconstructing SUSY cascade decays on an
event-by-event basis, and can provide a strong constraint in determining the
underlying model parameters. Finally, we show that for large tanβ there
can be an observable excess of τ leptons, and argue that τ signals
might serve to provide new information about the underlying model framework.Comment: 22 page REVTEX file including 8 figure