Search for first generation leptoquark pair production in the electron + missing energy + jets final state

Abstract

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 ppbar collisions at $\sqrt{s}=1.96$ TeV. In the channel $LQ\overline{LQ}\to e{\nu }_{e}q{q}^{\prime }$, where q, q' 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 leptoquark mass, assuming equal probabilities of leptoquark decays to eq and ${\nu }_e{q}^{\prime }$.

7 pages, 6 figures, submitted to PRD-RC

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• New Physics Opportunities for Long-Lived Particles at Electron-Proton Colliders
• D vs d: CP Violation in Beta Decay and Electric Dipole Moments
• Phenomenology of Scalar Leptoquarks at the LHC in Explaining the Radiative Neutrino Mass, Muon $g-2$ and Lepton Flavour Violating Observables
• Probing Leptoquark and Heavy Neutrino at LHeC
• Distinguishing Leptoquarks at the LHC/FCC
• Review of Searches for Rare Processes and Physics Beyond the Standard Model at HERA
• Do leptoquarks manifest themselves in ultra-high energy neutrino interactions?
• Single vector leptoquark production at hadron colliders due to direct lepton-gluon interaction
• Closing the light gluino gap with electron-proton colliders
• Constraining Scalar Doublet and Triplet Leptoquarks with Vacuum Stability and Perturbativity