A search for charged massive long-lived particles at D0

Details A search for charged massive long-lived particles at D0 A search for charged massive long-lived particles at D0

2011-09-30

arxiv.org/abs/1109.6901v1

Physics

High Energy Physics

High Energy Physics - Experiment

8 pages, 5 figures. Proceedings of the DPF-2011 Conference, Providence, RI, August 8-13, 2011

Scientific paper

We report on a search for charged massive long-lived particles (CMLLPs), based on 5.2 fb$^{-1}$ of data collected with the D0 detector at the Fermilab Tevatron $p\bar{p}$ collider. CMLLPs are predicted in many theories of physics beyond the standard model. We look for events in which one or more particles are reconstructed as muons but have speed and ionization energy loss $dE/dx$ inconsistent with muons produced in beam collisions. We present 95% C.L. upper limits on the production cross section for long-lived scalar taus, for long-lived charginos in two SUSY scenarios, and for long-lived scalar top quarks. We also present exclusion mass ranges for the chargino and scalar top quark models.

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