Can LHC observe an anomaly in ttZ production? - Archive ouverte HAL Access content directly
Preprints, Working Papers, ... Year : 2013

Can LHC observe an anomaly in ttZ production?

F. Richard
  • Function : Author
  • PersonId : 832776


The cross section for production at the 7 TeV LHC has been measured. For the first time it therefore becomes possible to measure Z couplings to top quarks. Interpreting the notorious LEP1 anomaly on Z couplings to b quarks in terms of an extra-dimension model, one expects an excess, as large as a factor 2, on the rate which may already become significant with the LHC at 8 TeV data. Other schemes are reviewed which also predict deviations of couplings. The size of the effect and a dramatic increase of the top quarks with the right chirality should confirm our interpretation of the underlying mechanism. Complementary signals observable at LHC are also briefly reviewed.

Dates and versions

in2p3-00813170 , version 1 (15-04-2013)


  • HAL Id : in2p3-00813170 , version 1
  • ARXIV : 1304.3594


F. Richard. Can LHC observe an anomaly in ttZ production?. 2013. ⟨in2p3-00813170⟩
16 View
0 Download



Gmail Facebook Twitter LinkedIn More