Single top polarisation as a window to new physics

  title={Single top polarisation as a window to new physics},
  author={J. A. Aguilar-Saavedra and C. Degrande and S. Khatibi},
  journal={Physics Letters B},
  • J. A. Aguilar-Saavedra, C. Degrande, S. Khatibi
  • Published 2017
  • Physics
  • Physics Letters B
  • Abstract We discuss the effect of heavy new physics, parameterised in terms of four-fermion operators, in the polarisation of single top (anti-)quarks in the t -channel process at the LHC. It is found that for operators involving a right-handed top quark field the relative effect on the longitudinal polarisation is twice larger than the relative effect on the total cross section. This enhanced dependence on possible four-fermion contributions makes the polarisation measurements specially… CONTINUE READING
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