Speaker
Description
Search for the presence of a new heavy resonance, produced via gluon-gluon fusion and decaying to the four-lepton ($4\ell$) final state, in association with missing transverse energy ($E^{\text{miss}}_{\text{T}}$), with $\ell$ = $e$, $\mu$. The search uses 2015–2018 proton–proton collision data at $\sqrt{s}$ = 13 TeV, corresponding to an integrated luminosity of 139 fb$^{-1}$, collected by the ATLAS detector at the Large Hadron Collider at CERN. The data is interpreted in terms of two models, firstly the $R\rightarrow SH \rightarrow 4\ell+ E^{\text{miss}}_{\text{T}}$, where $R$ is a scalar boson, which decays to two lighter scalar bosons ($S$ and $H$). The $S$ decays to a pair of neutrinos ($E^{\text{miss}}_{\text{T}}$) and the $H$ decays into $4\ell$, through $ZZ$ bosons. The second model is the $A\rightarrow ZH \rightarrow 4\ell + E^{\text{miss}}_{\text{T}}$, where $A$ is considered to be a CP-odd scalar which decays to a CP-even scalar $H$, and the $Z$ boson. The $Z$ boson decays to a pair of neutrinos, and the $H$ decays to the $4\ell$ final state.
Apply to be considered for a student ; award (Yes / No)?
Yes
Level for award;(Hons, MSc, PhD, N/A)?
PhD
