par Adloff, Catherine;Clerbaux, Barbara ;Collard, Caroline ;Favart, Laurent ;Janssen, Xavier ;Marage, Pierre ; [et al.]
Référence European Physical Journal C. Particles and Fields, 17, 4, page (567-581)
Publication Publié, 2000
Article révisé par les pairs
Résumé : A search for excited fermions f* of the first generation in e+p scattering at the collider HERA is presented using H1 data with an integrated luminosity of 37 pb-1. All electroweak decays of excited fermions, f* → fγ, fW, fZ are considered and all possible final states resulting from the Z or W hadronic decays or decays into leptons of the first two generations are taken into account. No evidence for f* production is found. Mass dependent exclusion limits on cross-sections and on the ratio of coupling constants to the compositeness scale are derived.