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| Paper IPM / Particles / 13626 |
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We present a study to examine the sensitivity of the future e− e+ collider to the anomalous top flavour-changing neutral current (FCNC) to the gluon.
To separate signal from background a multivariate analysis is performed on top-quark pair and background
events, where one top quark is considered to follow the dominant Standard Model (SM) decay, t→ Wb,
and the other top decays through FCNC, t→ qg, where q is a u− or a c−quark.
The analysis of fully-hadronic FCNC decay of the t ―t pair is also presented.
The 95% confidence level limits on the top-quark anomalous couplings are obtained for different values
of the centre-of-mass energies and integrated luminosities.
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