H1prelim-06-061

A search for Leptoquarks in e-p collisions at HERA

Reference Preliminary results for ICHEP06, Summer 2006
Document Conference paper or talk
Figures  (1a)  (1b)  (1c)  (1d)  (2a)  (2b)  (3)
Tables
Contact Jenny List, Christian Helebrant
Abstract A search for scalar and vector leptoquarks coupling to first generation fermions performed in the H1 experiment using e-p data collected in the years 2004 and 2005 is presented. Especially the sensitivity to leptoquarks with fermion number F=2 is increased substancially w.r.t. the previous H1 results. No significant evidence for the direct production of such particles is found in a data sample with a large transverse momentum final state electron or with large missing transverse momentum. The results of the present analysis are thus combined with those of the searches in the e+p and e-p data of the HERA I phase in order to set new constraints on leptoquark models.
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