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Search for Scalar Leptoquark Pairs Decaying to $ν\bar νq \bar q$ in \ppbar Collisions at $\sqrt {s} = 1.96$ TeV

CDF Collaboration·D. Acosta
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Abstract

We report on a search for the pair production of scalar leptoquarks, $LQ$, using 191 pb$^{-1}$ of proton-antiproton collision data recorded by the CDF experiment during Run II of the Tevatron. The leptoquarks are sought via their decay into a neutrino and quark yielding missing transverse energy and several jets of large transverse energy. No evidence for leptoquark production is observed, and limits are set on $σ(p\bar p\to LQ\bar{LQ} X \to ν\barνq\bar q X)$. Using a next-to-leading order theoretical prediction of the cross section for scalar leptoquark production, we exclude first-generation leptoquarks in the mass interval 78 to 117 GeV$/c^2$ at the 95% confidence level for BR($LQ\to νq)=100%$.

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CDF Collaboration, D. Acosta. 2004-10-25. Search for Scalar Leptoquark Pairs Decaying to $ν\bar νq \bar q$ in \ppbar Collisions at $\sqrt {s} = 1.96$ TeV. https://doi.org/10.1103/physrevd.71.112001%2010.1103%2Fphysrevd.71.119901

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