KK MC 4.22: CEEX EW Corrections for ff→ f'f' at LHC and Muon Colliders

Original · EN

We present the upgrade of the coherent exclusive (CEEX) exponentiation realization of the Yennie-Frautschi-Suura (YFS) theory used in our Monte Carlo (KK MC) to the processes ff→ f'f', f=μ,τ,q,νℓ, f'=e,μ,τ,q,νℓ, q=u,d,s,c,b,t, ℓ=e,μ,τwith f≠ f', with an eye toward the precision physics of the LHC and possible high energy muon colliders. We give a brief summary of the CEEX theory in comparison to the older (EEX) exclusive exponentiation theory and illustrate theoretical results relevant to the LHC and possible muon collider physics programs.