  We consider the impact on WW production of the unique dimension-six operator
coupling gluons to the Higgs field. In order to study this process, we have to
appropriately model the effect of a veto on additional jets. This requires the
resummation of large logarithms of the ratio of the maximum jet transverse
momentum and the invariant mass of the W boson pair. We have performed such
resummation at the appropriate accuracy for the Standard Model (SM) background
and for a signal beyond the SM (BSM), and devised a simple method to interface
jet-veto resummations with fixed-order event generators. This resulted in the
fast numerical code MCFM-RE, the Resummation Edition of the fixed-order code
MCFM. We compared our resummed predictions with parton-shower event generators
and assessed the size of effects, such as limited detector acceptances,
hadronisation and the underlying event, that were not included in our
resummation. We have then used the code to compare the sensitivity of WW and ZZ
production at the HL-LHC to the considered higher-dimension operator. We have
found that WW can provide complementary sensitivity with respect to ZZ,
provided one is able to control theory uncertainties at the percent-level. Our
method is general and can be applied to the production of any colour singlet,
both within and beyond the SM.
