A Search for first generation leptoquarks in collisions at TeV
Apr, 199320 pages
Published in:
- Phys.Rev.D 48 (1993) R3939-R3944
Report number:
- FERMILAB-PUB-93-070-E
Experiments:
Citations per year
Abstract: (APS)
We present results of a search for a first-generation leptoquark S1 in p¯p collisions at s=1.8 TeV at the Fermilab Tevatron. Using 4.05 pb−1 of data collected during the 1988-1989 CDF run, we have searched for evidence of S1S¯1 production assuming that each leptoquark decays to an electron+quark pair with a branching ratio β. Three events with two high energy electrons and two high energy jets were found, but are consistent with Z0 decay. No events were found in the signal region. Assuming a short lived scalar leptoquark with Yukawa coupling strength λ≳2×10−7, we exclude σβ2>55(4.0) pb at 95% C.L. for MS=45(125) GeV/c2. Using a Monte Carlo prediction for σ(p¯p→S1S¯1+X), we exclude MS<113(80) GeV/c2 for β=100(50)%.- anti-p p: colliding beams
- colliding beams: anti-p p
- postulated particle: leptoquark
- scalar particle: leptoquark
- leptoquark: pair production
- pair production: leptoquark
- decay: leptoquark
- leptoquark: decay
- mass: leptoquark
- leptoquark: mass
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