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Description
Top-quark precision measurements are of central importance to the LHC
physics program. The top-quark the heaviest known fundamental particle
with unique properties well defined by the Standard Model (SM). It has
large couplings to the Higgs boson, and it is the only quark that decays
before hadronisation. The production of top-quark pairs in pp collisions
is a process at the boundary between the SM and what might
lie beyond it. Thus new physics might affect its properties.
Over the past decades, SM has been very successful in describing all the
experimental measurements using “only” three generations of quarks and
lepton families. Many beyond SM models predicts new heavy quarks:
Extra-dimensions, little higgs, new SM like generations, GUTs, etc...
This seminar will review various searches performed at LHC and give an
overview of possible perspectives.
