Speaker
Matthew Lim
(University of Sussex)
Description
Vetoes on energetic jets are common in experimental analyses and are used to reject backgrounds which have similar final states to signal processes of interest. In placing a jet veto, however, one introduces large logarithms of the veto scale over the hard scale of the process. I will discuss how the resummation of these logarithms in a SCET approach can be embedded into Monte Carlo event generators which match NNLO calculations to a parton shower algorithm via the GENEVA method. Taking the $W^+W^-$ production process as an example, I will present comparisons to ATLAS and CMS data which show excellent agreement between theory and measurement.
Author
Matthew Lim
(University of Sussex)