Speaker
Description
From 2015 to 2018, the Large Hadron Collider (LHC) collided protons at an unprecedented center of mass energy of s=√13 TeV. The ATLAS detector recorded an integrated luminosity of 139fb$^{-1}$ of these collisions. This offers an unprecedented opportunity for physicists to test the Standard Model by measuring predicted but yet unobserved rare processes. The triboson W$\gamma\gamma$ production is one of these unobserved processes. Its sensitivity to the electroweak trilinear and quartic gauge couplings make it a great probe of new physics phenomena as Beyond Standard Model processes could affect the effective strength of these couplings. The dominant source of background to the search for W$\gamma\gamma$ production are jets being misidentified as photons. The advanced data-driven technique used to estimate this background will be presented. Furthermore, preliminary studies of the dominant systematic uncertainties impacting the expected significance of the measurement will be presented.
