Search for leptoquark pairs decaying into nu nu plus jets in p(p)over-bar collisions at TeV at root s=1.8 TeV

Abstract

We present the results of a search for leptoquark (LQ) pairs in (85.2 +/- 3.7) pb(-1) of p (p) over bar collider data collected by the D0 experiment at the Fermilab Tevatron. We observe no evidence for leptoquark production and set a limit on sigma(p (p) over bar -->LQ (LQ) over bar --> nunu + jets) as a function of the mass of the leptoquark (m(LQ)) . Assuming the decay LQ --> nuq, we exclude scalar leptoquarks for m(LQ) < 98 GeV/c(2), and vector leptoquarks for m(LQ) < 200 GeV/c(2) and coupling which produces the minimum cross section, at a 95% confidence level.