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# Search for Long-Lived Massive Charged Particles in 1.96 TeV $\bar{p}p}$ Collisions

Abstract : We performed a signature-based search for long-lived charged massive particles (CHAMPs) produced in 1.0 $\rm{fb}^{-1}$ of $\bar{p}p$ collisions at $\sqrt{s}=1.96$ 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 $1.9 \pm 0.2$ 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/$c^2$ at 95% C.L.
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Preprints, Working Papers, ...
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http://hal.in2p3.fr/in2p3-00361601
Contributor : Swarna Bassava <>
Submitted on : Monday, February 16, 2009 - 11:18:04 AM
Last modification on : Wednesday, September 15, 2021 - 2:56:02 PM

### Identifiers

• HAL Id : in2p3-00361601, version 1
• ARXIV : 0902.1266

### Citation

T. Aaltonen, J. Adelman, T. Akimoto, B. _alvarez Gonz_alezs, S. Amerioy, et al.. Search for Long-Lived Massive Charged Particles in 1.96 TeV $\bar{p}p}$ Collisions. 2009. ⟨in2p3-00361601⟩

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