Jul 4 – 11, 2018
Asia/Seoul timezone

Top-quark physics at the first CLIC stage

Jul 7, 2018, 6:00 PM
209 (COEX, Seoul)


COEX, Seoul

Parallel Top Quark and Electroweak Physics Top Quark and Electroweak Physics


Aleksander Zarnecki (University of Warsaw (PL))


The Compact Linear Collider (CLIC) is a mature option for a future electron-positron collider operating at centre-of-mass energies of up to 3 TeV. CLIC will be built and operated in a staged approach with three centre-of-mass energy stages currently assumed to be 380 GeV, 1.5 TeV and 3 TeV. This talk discusses the prospects for precision measurements of the top-quark properties at the first stage of CLIC operation based on benchmark analyses using full detector simulations. The top-quark mass can be determined with a precision of about 50 MeV in a theoretically well-defined manner by using a centre-of-mass energy scan around the top-quark pair production threshold. Other approaches to extract the top-quark mass at CLIC make use of ISR photons or the direct reconstruction of the top quarks. Another key measurement at 380 GeV is the study of the top-quark couplings to electroweak gauge bosons. Expected precisions on Effective Field Theory (EFT) operator coefficients are shown. Finally, searches for Flavour Changing Neutral Current (FCNC) top quark decays, such as t->cH, t->c+photon and t->c+missing energy, are discussed.

Presentation materials