We performed a signature-based search for long-lived charged
massive particles (CHAMPs) produced in 1.0 fb-1 of p anti-p collisions
at sqrt s ñ.96 TeV, collected with the CDF II detector using a high
transverse-momentum (p(t)) muon trigger. The search used time-of-flight
to isolate slowly moving, high-p(t) particles. One event passed our
selection cuts with an expected background of 1.9 +/- 0.2 events. We set
an upper bound on the production cross section, and, interpreting this
result within the context of a stable scalar top quark model, set a
lower limit on the particle mass of 249 GeV/c2 at 95% C.L.
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Updated: Tuesday, 2009 July 14 14:48:09 CDT automatically from input from carol picciolo