Search For First Generation Scalar Leptoquarks In P Anti P Collisions At S
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Search for First-generation Scalar Leptoquarks in P Anti-p Collisions at S**(1/2)
We report on a search for pair production of first-generation scalar leptoquarks (LQ) in pp collisions at √(s)=1.96 TeV using an integrated luminosity of 203 pb−1 collected at the Fermilab Tevatron collider by the CDF experiment. We observe no evidence for LQ production in the topologies arising from LQLQ→eqeq and LQLQ→eq?q, and derive 95% C.L. upper limits on the LQ production cross section. The results are combined with those obtained from a separately reported CDF search in the topology arising from LQLQ→?q?q and 95% C.L. lower limits on the LQ mass as a function of ?=BR(LQ→eq) are derived. The limits are 236, 205 and 145 GeV/c2 for ?=1, ?=0.5 and ?=0.1, respectively.
Search for First-generation Scalar Leptoquarks in P Anti-p Collisions at S**ư
The authors report on a search for pair production of first-generation scalar leptoquarks (LQ) in p{bar p} collisions at √s = 1.96 TeV using an integrated luminosity of 252 pb−1 collected at the Fermilab Tevatron collider by the D0 detector. They observe no evidence for LQ production in the topologies arising from LQ{ovr LQ} → eqeq and LQ{ovr LQ} → eqvq, and derive 95% C.L. lower limits on the LQ mass as a function of?, where? is the branching fraction for LQ → eq. The limits are 241 and 218 GeV/c2 for? = 1 and 0.5, respectively. These results are combined with those obtained by D0 at √s = 1.8 TeV, which increases these LQ mass limits to 256 and 234 GeV/c2.