Non-global logarithms in jet and isolation cone cross sections

Non-global logarithms in jet and isolation cone cross sections

Blog Article

Abstract Starting from a factorization theorem in effective field theory, we derive a parton-shower equation for the resummation of non-global logarithms.We have implemented this shower and interfaced it with Bath Light a tree-level event generator to obtain an automated framework to resum the leading logarithm of non-global observables in the large-N c limit.Using this setup, we compute gap fractions for dijet processes and isolation cone cross sections relevant for photon production.We compare our results with fixed-order computations and LHC measurements.We find that naive exponentiation is often not adequate, especially when the vetoed region is small, since non-global contributions are enhanced due to their dependence on the veto-region size.

Since our parton shower is derived from first principles and based on renormalization-group evolution, CDA EVPK90SS Linear 90cm Island Cooker Hood Stainless Steel it is clear what ingredients will have to be included to perform resummations at subleading logarithmic accuracy in the future.