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Search for heavy lepton pair production in e+ e- collisions at center-of-mass energies of 130-GeV and 136-GeV

Buskulic, D. and Finch, Alexander (1996) Search for heavy lepton pair production in e+ e- collisions at center-of-mass energies of 130-GeV and 136-GeV. Physics Letters B, 384 (1-4). pp. 439-448. ISSN 0370-2693

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Abstract

A search for pair production of new heavy leptons has been performed assuming different scenarios for the mixing of the new particles with Standard Model leptons. No candidate events were found in a data sample corresponding to an integrated luminosity of 5.6 pb−1 collected by the ALEPH detector at centre-of-mass energies of 130 and 136 GeV. New limits on production cross-sections and on masses of sequential leptons were obtained which significantly extend the mass regions excluded at LEP1. For instance, charged heavy leptons with masses below 63.5 GeV/c2 are excluded at 95% C.L. for mass differences to the associated neutral lepton of more than 7 GeV/c2.

Item Type: Article
Journal or Publication Title: Physics Letters B
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 64042
Deposited By: ep_importer_pure
Deposited On: 14 May 2013 14:58
Refereed?: Yes
Published?: Published
Last Modified: 21 Nov 2017 18:32
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/64042

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