We present the results of a search for first generation scalar leptoquarks pairs (S-1 (S)over-bar(1)) in 110 +/- 7 pb(-1) of data collected by the Collider Detector at Fermilab. We assume both leptoquarks decay to an electron and a quark. Three candidate events, with masses below 140 GeV/c(2) and consistent with background expectations, are observed. We obtain a 95% confidence level upper limit on the production cross section as a function of the leptoquark mass. Using a next-to-leading order calculation of S-1 (S)over-bar(1) production, we exclude scalar leptoquarks with mass less than 213 GeV/c(2) at 95% C.L. for a branching ratio into eq equal to 1.

Search for First Generation Leptoquark Pair Production inpp¯Collisions ats=1.8TeV

DONATI, SIMONE;PUNZI, GIOVANNI;
1997-01-01

Abstract

We present the results of a search for first generation scalar leptoquarks pairs (S-1 (S)over-bar(1)) in 110 +/- 7 pb(-1) of data collected by the Collider Detector at Fermilab. We assume both leptoquarks decay to an electron and a quark. Three candidate events, with masses below 140 GeV/c(2) and consistent with background expectations, are observed. We obtain a 95% confidence level upper limit on the production cross section as a function of the leptoquark mass. Using a next-to-leading order calculation of S-1 (S)over-bar(1) production, we exclude scalar leptoquarks with mass less than 213 GeV/c(2) at 95% C.L. for a branching ratio into eq equal to 1.
1997
Abe, F.; Akimoto, H.; Akopian, A.; Albrow, M. G.; Amadon, A.; Amendolia, S. R.; Amidei, D.; Antos, J.; Aota, S.; Apollinari, G.; Arisawa, T.; Asakawa,...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/757115
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