267 citations · 3.2k across the 56 of their papers we have counts for
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Top Quark Properties
Cen Zhang
Recently, experimental collaborations have reported upper limits on the signal strength of four-top production at the LHC, which already leads to competitive cons…
Theoretical aspects of the study of top quark properties
Cen Zhang
We review some recent theoretical progresses towards the determination of the top-quark couplings beyond the standard model. We briefly introduce the global effective field theory…
Constraining operators from four-top production: a case for enhanced EFT sensitivity
Cen Zhang
Recently, experimental collaborations have reported upper limits on the signal strength of four-top production at the LHC. Surprisingly, we find that the constrai…
Scalar production and decay to top quarks including interference effects at NLO in QCD in an EFT approach
Diogo Buarque Franzosi, Eleni Vryonidou, Cen Zhang
Scalar and pseudo-scalar resonances decaying to top quarks are common predictions in several scenarios beyond the standard model (SM) and are extensively searched for by LHC experi…
Probing the top-quark width using the charge identification of jets
Pier Paolo Giardino, Cen Zhang
We propose a new method for measuring the top-quark width based on the on-/off-shell ratio of -charge asymmetry in production at the LHC. The charge asymmetry remove…