A search for any resonant state coupled to an electron and a proton constituent has been performed using collisions of electron and proton beams at HERA. In a sample with integrated luminosity of 26 nb-1, no evidence has been found for production of leptoquarks with decays to e- + jet or ν + jet. Limits on the coupling strength of scalar leptoquarks to electron and quark have been determined for masses above 25 GeV. For example, scalar isosinglet leptoquarks (S0) with electroweak coupling strength to (e-u) states are ruled out at the 95% confidence level for masses below 168 GeV for left-handed couplings and below 176 GeV for right-handed couplings
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed...
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed...
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed...
A search for any resonant state coupled to an electron and a proton constituent has been performed u...
A search for any resonant state coupled to an electron and a proton constituent has been performed u...
Leptoquarks carry lepton number as well as baryon number and could provide an explanation for the ob...
A search for first-generation leptoquarks was performed in electron-proton and positron-proton colli...
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed...
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed...
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed...
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed...
A search for any resonant state coupled to an electron and a proton constituent has been performed u...
A search for any resonant state coupled to an electron and a proton constituent has been performed u...
Leptoquarks carry lepton number as well as baryon number and could provide an explanation for the ob...
A search for first-generation leptoquarks was performed in electron-proton and positron-proton colli...
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed...
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed...
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed...
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed...