Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2001-06-15
Phys.Rev.Lett. 88 (2002) 191801
Physics
High Energy Physics
High Energy Physics - Experiment
11 pages, submitted to the International Europhysics Conference on High Energy Physics and to the XX International Symposium o
Scientific paper
We present the preliminary results of a search for leptoquark ($LQ$) pairs using (85.2 $\pm$ 3.7) pb$^{-1}$ of $p{\bar p}$ collider data collected by the DO experiment at the Fermilab Tevatron from 1994-1996. We observe no evidence for leptoquark production and set a limit on $\sigma (p{\bar p} \to LQ\bar{LQ} \to \nu\nu + jets)$ as a function of the mass of the leptoquark ($M_{LQ}$), assuming BR($LQ \to \nu q$)=100%. At the 95% confidence level, we exclude scalar leptoquarks for $M_{LQ} < 99 GeV/c^2$, and vector leptoquarks for $M_{LQ} < 178 GeV/c^2$.
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