Search for scalar leptoquark pairs decaying to electrons and jets in (p)over-bar-p collisionsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:We have searched for the pair production of first generation scalar leptoquarks in the eejj channel using the full data set (123 pb(-1)) collected with the DO detector at the Fermilab Tevatron during 1992-1996. We observe no candidates with an expected background of approximately 0.4 events. Comparing the experimental 95% confidence level upper limit to theoretical calculations of the cross section with the assumption of a 100% branching fraction of eq, we set a lower limit on the mass of a first generation scalar leptoquark of 225 GeV/c(2). The results of this analysis rule out the interpretation of the excess of high Q(2) events at DESY HERA as leptoquarks which decay exclusively to eq.