Editing Compact Linear Collider (section)

=== Top-quark physics ===
[[File:Ttbar 3TeV event11 woverlay Tight zoom.png|alt=|thumb|280x280px|A top quark event at 3&nbsp;TeV reconstructed in a simulated detector for CLIC]]
The top quark, the heaviest of all known fundamental particles, has currently never been studied in [[electron]]-[[positron]] collisions.<ref name=top_quark>
{{cite journal |arxiv=1807.02441|collaboration=The CLICdp collaboration|title=Top-quark physics at the CLIC electron-positron linear collider|year=2019|last1=Abramowicz |first1=H. |last2=Alipour Tehrani |first2=N. |last3=Arominski |first3=D. |last4=Benhammou |first4=Y. |last5=Benoit |first5=M. |last6=Blaising |first6=J.-J. |last7=Boronat |first7=M. |last8=Borysov |first8=O. |last9=Bosley |first9=R. R. |last10=Božović Jelisavčić |first10=I. |last11=Boyko |first11=I. |last12=Brass |first12=S. |last13=Brondolin |first13=E. |last14=Bruckman De Renstrom |first14=P. |last15=Buckland |first15=M. |last16=Burrows |first16=P. N. |last17=Chefdeville |first17=M. |last18=Chekanov |first18=S. |last19=Coates |first19=T. |last20=Dannheim |first20=D. |last21=Demarteau |first21=M. |last22=Denizli |first22=H. |last23=Durieux |first23=G. |last24=Eigen |first24=G. |last25=Elsener |first25=K. |last26=Fullana |first26=E. |last27=Fuster |first27=J. |last28=Gabriel |first28=M. |last29=Gaede |first29=F. |last30=García |first30=I.|journal=Journal of High Energy Physics|volume=2019|issue=11|page=003|display-authors=1|doi=10.1007/JHEP11(2019)003|bibcode=2019JHEP...11..003C|s2cid=85505969
}}</ref> The CLIC linear collider plans to have an extensive top quark physics programme. A major aim of this programme would be a threshold scan around the top quark pair-production threshold (~350&nbsp;GeV) to precisely determine the [[mass]] and other significant properties of the top quark. For this scan, CLIC currently plans to devote 10% of the running time of the first stage, collecting 100&nbsp;fb<sup>−1</sup>.<ref name=Burrows_CLIC_CERN-2018/> This study would allow the top quark mass to be ascertained in a theoretically well-defined manner and at a higher precision than possible with hadron colliders.<ref name=cdr_page/> CLIC would also aim to measure the top quark electroweak couplings to the [[W and Z bosons|Z boson]] and the photon, as deviations of these values from those predicted by the [[Standard Model]] could be evidence of new physics phenomena, such as extra dimensions. Further observation of top quark decays with [[Flavour (particle physics)|flavour]]-changing neutral currents at CLIC would be an indirect indication of new physics, as these should not be seen by CLIC under current [[Standard Model]] predictions.<ref name=top_quark/>