A search is performed for heavy metastable particles that
decay into jet pairs with a macroscopi+c lifetime (cτ∼1 cm)
in pp̅ collisions at √s=1.96 TeV using data from the CDF
II detector at Fermilab corresponding to an integrated luminosity of
3.2 fb-1. To estimate the standard model background, a data-driven
approach is used. Probability-density functions are constructed to model
secondary vertices from known processes. No statistically significant
excess is observed above the background. Limits on the production cross
section in a hidden valley benchmark phenomenology are set for various
Higgs boson masses as well as metastable particle masses and lifetimes.
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Updated: Friday, 2012 January 27 10:13:05 CST automatically from input from "Stephanie A. Schuler"