Speaker
Description
The discovery potential of the Standard Model Effective Field Theory (SMEFT) can be enhanced by including dimension-8 operators and their impact on di-boson production at the Large Hadron Collider (LHC), particularly in the high energy tails of the distributions. Although $W^+W^-$ production has a large leptonic cross section, it is subject to a tight jet-veto to suppress the otherwise overwhelming $t\bar t$ background. Therefore in this channel, both the background and operator mediated signal require at least a parton-shower or better full resummation of large logarithms. I present results from gluon fusion, photon fusion, and quark-antiquark annihilation and demonstrate the large size of these effects by presenting current constraints and sensitivity projections for the High Luminosity LHC, both with and without a jet-veto. Furthermore, I will present how the choice of the observable and theoretical uncertainty estimation play a role in the overall constraints from the tails of this channel.
