Search for first generation scalar leptoquark pairs in p(p)over-bar collisions at root s=1.8 TeVстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:We have searched for first generation scalar leptoquark (LQ) pairs in the e nu + jets channel using <p(p)over bar> collider data (integral L dt approximate to 115 pb(-1)) collected by the D0 experiment at the Fermilab Tevatron during 1992-1996. The analysis yields no candidate events. We combine the results with those from the ee + jets and nu nu + jets channels to obtain 95% confidence level (C.L.) upper limits on the LQ pair production cross section as a function of mass and of beta the branching fraction to a charged lepton. Comparing with the next-to-leading order theory, we set 95% C.L. lower limits on the LQ mass of 225, 204, and 79 GeV/c(2) for beta = 1, 1/2, and 0, respectively.