Search for Long-Lived Massive Charged Particles in 1.96 TeV pp¯ Collisions Academic Article uri icon


  • We performed a signature-based search for long-lived charged massive particles produced in 1.0 fb-1 of pp[over ] collisions at sqrt[s]=1.96 TeV, collected with the CDF II detector using a high transverse-momentum (pT) muon trigger. The search used time of flight to isolate slowly moving, high-pT 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.

author list (cited authors)

  • Aaltonen, T., Adelman, J., Akimoto, T., González, B., Amerio, S., Amidei, D., ... Zucchelli, S.

citation count

  • 56

publication date

  • July 2009