2 research outputs found
Leptoquark pair production at the Fermilab Tevatron: Signal and backgrounds
We perform a Monte-Carlo simulation of scalar leptoquark pair production at
the Tevatron (energy =1.8 TeV and luminosity =100 pb^{-1}) with ISAJET. We also
investigate the dominant sources of Standard Model background: Z*jj, ZZ
production and heavy quark top-antitop. We find that the top-antitop background
is the most important except near the Z pole where the Z*jj background is
peaked. We also evaluate the signal-to-background ratio and find a discovery
reach of 130 GeV (170 GeV) for a branching ratio of B(LQ-> eq)=0.5 (B=1).Comment: 8 pages, 6 figures, latex (revtex
Scalar and Vector Leptoquark Pair Production at Hadron Colliders: Signal and Backgrounds
We perform a systematic analysis of scalar and vector leptoquark pair
production at the Fermilab Tevatron and at the CERN LHC. We evaluate signal
expectations and background levels for the processes pp (p ppar) -> 2 jets +
e^{+} + e^{-} and 2 jets + e + missing p_T. The Monte Carlo event generator
ISAJET is used to simulate the experimental conditions at the current
(Sqrt{s}=1.8 TeV, Luminosity=100 pb^{-1}) and upgraded (Luminosity=100 pb^{-1})
Tevatron as well as the LHC (Sqrt{s}=14 TeV, Luminosity=10 fb^{-1}). Depending
on the luminosity, and assuming a branching ratio B(LQ -> eq)=0.5, we find a
discovery reach up to 170 (255) GeV for scalar leptoquarks at the current
(upgraded) Tevatron. Similarly, we find vector leptoquarks to be detectable at
masses below 300 (400) GeV depending on the coupling. At the LHC, the discovery
reach is enhanced to 1 TeV for scalar leptoquarks and to 1.5 TeV for vectors.Comment: 15 pages (REVTEX), 12 figures, submitted to Phys. Rev.