Observables sensitive to four-quark operators

Details

Supervisors

Degrande, Céline

Faculty

Faculté des sciences

Degree label

Master [120] en sciences physiques, à finalité approfondie

Abstract

enThis thesis studies the sensitivity of associated photon-dijet production, pp→γjj, at the LHC to the ten four-light-quark operators of the SMEFT Warsaw basis. Using MadGraph5_aMC@NLO simulations, constraints on the Wilson coefficients are derived from differential distributions of the photon transverse momentum. The flavour-discriminating power of the photon, combined with an interference revival strategy allows to probe directions in coefficient space that inclusive observables cannot access. The analysis is further extended to quadratic EFT contributions and to the disentanglement of colour-singlet and colour-octet operator structures