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Search for charged massive long-lived particles at root s=1.96 TeV
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2013 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 87, no 5, 052011- p.Article in journal (Refereed) Published
Abstract [en]

We present a search for charged massive long-lived particles (CMLLPs) that are pair produced in p (p) over bar collisions at root s = 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron collider. Our result is a combination of two searches where either one or both CMLLPs are reconstructed in the detector. We select events with muonlike particles that have both speed and ionization energy loss (dE/dx) different from muons produced in p (p) over bar collisions. In the absence of evidence for CMLLPs corresponding to 6.3 fb(-1) of integrated luminosity, we set limits on the CMLLP masses in several supersymmetric models, excluding masses below 278 GeV for long-lived gaugino-like charginos, and masses below 244 GeV for long-lived Higgsino-like charginos at the 95% C.L. We also set limits on the cross section for pair production of long-lived scalar tau leptons that range from 0.04 to 0.008 pb for scalar tau lepton masses of 100-300 GeV.

Place, publisher, year, edition, pages
2013. Vol. 87, no 5, 052011- p.
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Natural Sciences
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URN: urn:nbn:se:uu:diva-197973DOI: 10.1103/PhysRevD.87.052011ISI: 000315737300004OAI: oai:DiVA.org:uu-197973DiVA: diva2:615048
Available from: 2013-04-08 Created: 2013-04-08 Last updated: 2017-12-06Bibliographically approved

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Buszello, Claus P.

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