Jul 4 – 11, 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics

A search for resonance decays to lepton+jet at HERA and limits on leptoquarks

Jul 7, 2012, 9:35 AM
Room 219 (Melbourne Convention and Exhibition Centre)

Room 219

Melbourne Convention and Exhibition Centre

Melbourne Australia
Parallel Sessions Track 3 - BSM - Non-SUSY Exotics Room 219 - BSM - Non-SUSY - TR3


Dr Katarzyna Wichmann (DESY)


A search for first generation leptoquarks was performed in polarized electron-proton collider data recorded with the ZEUS detector at HERA in the years 2003-2007. They were analyzed for final states with an electron and jets or with missing transverse momentum and jets and a search for resonance structures or other deviations from the Standard Model predictions in the spectra of the invariant mass of lepton and jets was performed. No evidence for leptoquark signals was found. The data were combined with the previously taken data at HERA corresponding to an integrated luminosity of 0.5fb-1 and limits were set on the Yukawa coupling lambda as a function of the leptoquark mass for different leptoquark types within the Buchmueller-Rueckl-Wyler model.

Primary author

Presentation materials