A search for resonance decays to e-jet in ep collisions at HERA.

摘要

A search for narrow resonances which decay into e+jet(s) has been performed. The data samples used were 113 pb−1 of integrated luminosity of e+p collisions and 16 pb−1 of e− p collisions collected with the ZEUS detector at HERA. No evidence for a resonance was found, and limits on the hypothetical Yukawa coupling λ were derived as a function of the resonance mass. Limits were also derived for leptoquarks predicted by the Buchmüller-Rückl-Wyler model. The limits vary with the leptoquark type, but extend to masses of 290 GeV for λ = 0.1.