Jet substructure variables with the SiFCC detector at 100 TeV

Future experiments beyond the LHC era will measure high-momentum bosons (W, Z, H) and top quarks with strongly collimated decay products that form hadronic jets. This paper describes the studies of the performance of jet substructure variables using the Geant4 simulation of a detector designed for high energy pp collisions at a 100 TeV collider. The two-prong jets from Z′ → WW and three-prong jets from Z′ → tt&tild; are compared with the background from light quark jets, assuming Z′ masses in the range 5 - 40 TeV. Our results indicate that the performance of jetsubstructure reconstruction improves with reducing transverse cell sizes of a hadronic calorimeter from Δη × Δφ = 0:087×0:087 to 0:022×0:022 in most cases.