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Search for evidence of compositeness at LEP I

Research output: Contribution to Journal/MagazineJournal articlepeer-review

<mark>Journal publication date</mark>07/1998
<mark>Journal</mark>The European Physical Journal C (EPJ C) - Particles and Fields
Issue number4
Number of pages20
Pages (from-to)571-590
Publication StatusPublished
<mark>Original language</mark>English


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.