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Search for pair production of second generation scalar leptoquarks in p(p)over-bar collisions at root s-=1.96 TeV
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2006 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 636, no 3-4, 183-190 p.Article in journal (Refereed) Published
Abstract [en]

We report on a search for the pair production of second generation scalar leptoquarks (LQ(2)) in p (p) over bar collisions at the center-of-mass energy, root s = 1.96 TeV, using data corresponding to an integrated luminosity of 294 19 pb(-1) recorded with the DO detector. No evidence for a leptoquark signal in the LQ(2)LQ(2) -> mu q mu q channel has been observed, and upper bounds on the product of cross section times branching fraction were set. This yields lower mass limits of m(LQ2) > 247 GeV/c(2) for beta = B(LQ(2) -> mu q) = 1 and m(LQ2) > 182 GeV/c(2) for beta = 1/2. Combining these limits with previous DO results, the lower limits on the mass of a second generation scalar leptoquark are m(LQ2) > 251 GeV/c(2) and m(LQ2) > 204 GeV/c(2) for beta = I and beta = 1/2, respectively.

Place, publisher, year, edition, pages
2006. Vol. 636, no 3-4, 183-190 p.
Keyword [en]
second generation leptoquarks
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-37416DOI: 10.1016/j.physletb.2006.03.056ISI: 000237506900006Scopus ID: 2-s2.0-33748694894OAI: oai:DiVA.org:kth-37416DiVA: diva2:433808
Available from: 2011-08-11 Created: 2011-08-11 Last updated: 2017-12-08Bibliographically approved

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Strandberg, Jonas

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Gollub, NilsStrandberg, Jonas
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