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Search for evidence of compositeness at LEP I

Research output: Contribution to journalJournal article


Journal publication date07/1998
JournalThe European Physical Journal C (EPJ C) - Particles and Fields
Number of pages20
Original languageEnglish


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.