Search for long-lived massive charged particles in 1.96 TeV pp collisions.

Journal article

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.

Authors: Aaltonen, T; Adelman, J; Akimoto, T; Alvarez González, B; Amerio, S

• Publication status: Published
• Journal: Physical Review Letters
• Volume: 103
• Issue: 2
• Pages: 021802
• Publication date: 2009-07-01
• DOI: 10.1103/physrevlett.103.021802
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English
• Keywords: CDF Collaboration