Probing new physics with charge asymmetries in 2 same sign leptons plus jets final states

ARGANDA, ERNESTO; DA ROLD, LEANDRO; JUSTE, AURELIO; ANIBAL D. MEDINA; SANDÁ SEOANE, ROSA M.

Conferencia; 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023); 2023

We study the impact of three different BSM models in the charge asymmetry defined for the 2SSl (with l=e,μ) with jets (Njets≥2) final state at the LHC, at s√=13 TeV, where the main SM contribution is the tt¯W production. We consider the impact of a heavy neutral scalar/pseudoscalar arising from a general two Higgs doublet model (g2HDM); a simplified R-parity-violating minimal supersymmetric model (RPV MSSM) with electrowikino production (higgsino or wino-like); and an effective theory with dimension 6 four-quark operators. We propose measuring the charge asymmetries differentially with respect to different kinematic observables, and inclusively/exclusively with the number of b-tagged jets in the final state (Nb≥{1,2,3}). We show that the 2HDM and the four quark operator scenarios may be sensitive to the detection of new physics, even for an integrated luminosity of 139 fb−1..