Date of this Version
PHYSICAL REVIEW D 84, 071104(R) (2011); DOI: 10.1103/PhysRevD.84.071104
We present a search for the pair production of first generation scalar leptoquarks (LQ) in data corresponding to an integrated luminosity of 5.4 fb-1 collected with the D0 detector at the Fermilab Tevatron Collider in pp collisions at √s= 1.96 TeV. In the channel LQLQ → eqveq1, where q, q1 are u or d quarks, no significant excess of data over background is observed, and we set a 95% C.L. lower limit of 326 GeV on the LQ mass, assuming equal probabilities of LQ decays to eq and veq1.