PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Top quark and EW Physics
Complete study of four top quark production at the LHC in the SMEFT
H. El Faham
Full text: pdf
Pre-published on: November 23, 2022
Published on: June 15, 2023
We present a study of four top quark production at the LHC in the Standard Model Effective Field Theory (SMEFT).
The analysis is performed at the tree-level, including all terms from the mixed QCD-EW-coupling cross-section expansion and all the relevant dimension-six SMEFT operators.
We find several cases in which formally subleading terms give rise to significant contributions.
Moreover, we obtain limits on the SMEFT Wilson coefficients (WCs), including different collider setups, FCC-hh and HL-LHC, using a simplified chi-square fit. Through the latter, we also assessed the importance of including differential information in the fit.
DOI: https://doi.org/10.22323/1.414.0874
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