Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Search for single top production in $e^+ e^-$ collisions at $s$ up to 209-GeV
AU - ALEPH Collaboration, The
AU - Heister, A.
AU - Bouhova-Thacker, Evelina
AU - Bowdery, Christopher
AU - Finch, Alexander
AU - Foster, Frank
AU - Hughes, Gareth
AU - Jones, Roger
AU - Smizanska, Maria
PY - 2002/9/12
Y1 - 2002/9/12
N2 - 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.
AB - 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.
U2 - 10.1016/S0370-2693(02)02307-9
DO - 10.1016/S0370-2693(02)02307-9
M3 - Journal article
VL - 543
SP - 173
EP - 182
JO - Physics Letters B
JF - Physics Letters B
SN - 0370-2693
IS - 3-4
ER -