2023 Impact factor 4.2
Particles and Fields
Eur. Phys. J. C 4, 571-590
DOI 10.1007/s100529800936

This paper is dedicated to the memory of Maria Bardadin-Otwinowska, who contributed much to many of the analyses it contains.

Search for evidence of compositeness at LEP I

The ALEPH Collaboration
R. Barate - et al.

Laboratoire de Physique des Particules (LAPP), IN2P3-CNRS, F-74019 Annecy-le-Vieux Cedex, France

Received: 6 February 1998 / Published online: 2 July 1998

Extensive searches for evidence of compositeness of quarks and leptons have been made in the complete set of ALEPH data from LEP running at the Z peak. These include searches for radiative and weak decays of excited fermions, produced either in pairs or singly, and a scalar partner of the Z. Coupling and branching ratio limits deduced from these searches are presented.

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