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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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:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
?? nuclear and high energy physics ??
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Deposited On:
03 May 2013 09:56
Last Modified:
14 Feb 2024 00:45