Anomalous triple gauge couplings in the EW dilepton tails at the LHC and interference resurrection

by Minho Son (Anomalous triple gauge couplings in the EW dilepton tails at the LHC and interference resurrection)

Monday 3 Jul 2023, 16:00 → 17:30 Europe/Rome

Aula Conversi (Dip. di Fisica - Edificio G. Marconi)

We will discuss about the electroweak dilepton production with two forward jets at the LHC, aiming to measure the anomalous triple gauge couplings in the EFT approach. This process exhibits a distinctive feature, namely, the interference between SM and beyond the SM is resurrected in the total cross section of the full amplitude, including two forward jets. As a concrete illustration, we will show the detailed analytic and numerical study of the interference using a simpler toy process, and discuss the subtlety of the effective W approximation. We will also discuss about a new kinematic variable, VBFhardness, that controls the amount of energy flowing into the dilepton subprocess which turns out to be crucial to make the interference resurrection manifest.