Exploring the sensitivity of hadron colliders to nonuniversality in heavy neutral currents

F.A. Conventi , G. D’ambrosio , A.M. Iyer (1) , E. Rossi

1 IP2I Lyon - Institut de Physique des 2 Infinis de Lyon

We present sensitivity projections for discovering a heavy resonance decaying to electron and muon pairs and for probing the charged lepton nonuniversality in such decays at the High Luminosity Large Hadron Collider (HL-LHC) and hadron-hadron Future Circular Collider (FCC-hh). The analysis takes into account the expected differences in the reconstruction efficiencies and the di-lepton mass resolutions for di-electron and di-muon final states. We demonstrate how the analyses at HL-LHC naturally pave the way for a FCC-hh machine thereby underlining its importance.

Mots clés: Lepton flavour universality violation; nonuniversality; flavor physics; LHC; HL-LHC; FCC; FCC-hh; hadron collider; beyond standard model; CERN LHC Coll: upgrade; universality: violation; muon: pair production; luminosity: high; lepton: flavor: universality; resonance: heavy; sensitivity; mass resolution; dilepton: mass spectrum; mass spectrum: (electron positron); mass spectrum: (muon+ muon-); efficiency; electron: pair production; hadron hadron: interaction; numerical calculations: Monte Carlo; proposed experiment

Domaines: Physique des Hautes Energies - Expérience [hep-ex]

F.A. Conventi, G. D’ambrosio, A.M. Iyer, E. Rossi. Exploring the sensitivity of hadron colliders to nonuniversality in heavy neutral currents. International Journal of Modern Physics A, 2022, 37 (08), pp.2250037. ⟨10.1142/S0217751X22500373⟩. ⟨hal-03651819v2⟩