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Search for New Fermions ('Quirks') at the Fermilab Tevatron Collider
Stockholm University, Faculty of Science, Department of Physics. (Elementarpartikelfysik)
2010 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 105, 211803- p.Article in journal (Refereed) Published
Abstract [en]

We report results of a search for particles with anomalously high ionization in events with a high transverse energy jet and large missing transverse energy in 2.4  fb-1 of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron pp̅ collider. Production of such particles (quirks) is expected in scenarios with extra QCD-like SU(N) sectors, and this study is the first dedicated search for such signatures. We find no evidence of a signal and set a lower mass limit of 107, 119, and 133 GeV for the mass of a charged quirk with strong dynamics scale Λ in the range from 10 keV to 1 MeV and N=2, 3, and 5, respectively.

Place, publisher, year, edition, pages
2010. Vol. 105, 211803- p.
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Subatomic Physics
Research subject
URN: urn:nbn:se:su:diva-47330DOI: 10.1103/PhysRevLett.105.211803OAI: diva2:373650
Swedish Research Council
authorCount>438 Publikationen har totalt 438 författare, V. Abazov et al.Available from: 2010-12-01 Created: 2010-12-01 Last updated: 2011-01-10Bibliographically approved

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Åsman, Barbro
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