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Search for single top production in $e^+ e^-$ collisions at $s$ up to 209-GeV

ALEPH Collaboration, The and Heister, A. and Bouhova-Thacker, Evelina and Bowdery, Christopher and Finch, Alexander and Foster, Frank and Hughes, Gareth and Jones, Roger and Smizanska, Maria (2002) Search for single top production in $e^+ e^-$ collisions at $s$ up to 209-GeV. Physics Letters B, 543 (3-4). pp. 173-182. ISSN 0370-2693

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Abstract

Single top production via the flavour changing neutral current reactions is searched for within the 214 pb−1 of data collected by ALEPH at centre-of-mass energies between 204 and 209 GeV. No deviation from the Standard Model expectation is observed and upper limits on the single top production cross sections are derived. The combination with data collected at lower centre-of-mass energies yields an upper limit on the branching ratio BR(t→Zc)+BR(t→Zu)<14%, for BR(t→γc)+BR(t→γu)=0 and mt=174 GeV/c2.

Item Type: Article
Journal or Publication Title: Physics Letters B
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 63908
Deposited By: ep_importer_pure
Deposited On: 03 May 2013 10:56
Refereed?: Yes
Published?: Published
Last Modified: 17 Nov 2017 11:24
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/63908

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