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Stockholm University, Faculty of Science, Department of Physics.
2012 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 108, no 12, 121802- p.Article in journal (Refereed) Published
Abstract [en]

We report on a search for charged massive long-lived particles (CMLLPs), based on 5.2 fb(-1) of integrated luminosity collected with the D0 detector at the Fermilab Tevatron p (p) over bar collider. We search 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. CMLLPs are predicted in several theories of physics beyond the standard model. We exclude pair-produced long-lived gauginolike charginos below 267 GeV and Higgsino-like charginos below 217 GeV at 95% C.L., as well as long-lived scalar top quarks with mass below 285 GeV.

Place, publisher, year, edition, pages
2012. Vol. 108, no 12, 121802- p.
National Category
Physical Sciences
URN: urn:nbn:se:su:diva-76155DOI: 10.1103/PhysRevLett.108.121802ISI: 000301770900004OAI: diva2:525874


Available from: 2012-05-09 Created: 2012-05-09 Last updated: 2012-12-05Bibliographically approved

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