par Ahmed, T;Marage, Pierre ;Favart, Laurent ; [et al.]
Référence Zeitschrift für Physik. C, Particles and fields, 64, 4, page (545-558)
Publication Publié, 1994
Article révisé par les pairs
Résumé : A search in the H1 experiment at HERA for scalar and vector leptoquarks, leptogluons and squarks coupling to first generation fermions is presented in a data sample corresponding to an integrated luminosity of 425 nb-1. For masses ranging up to ∼275 GeV, no significant evidence for the direct production of such particles is found in various possible decay channels. At high masses and beyond the centre of mass energy of 296 GeV a contact interaction analysis is used to further constrain the couplings and masses of new vector leptoquarks and to set lower limits on compositeness scales. © 1994 Springer-Verlag.