Speaker
Description
We present a search for a spin-1 boson together with a spin-0 scalar wherer the additional scalar decays into a four lepton final state $(\ell = \mu$~or $e )$ via two intermediate dark vector bosons in the folllowing decay channel $S \rightarrow Z_d Z_d \rightarrow 4\ell$. In this scenario, the targeted additional scalar ($S$) mass ranges is between 20 GeV and 1 TeV where we exclude the Higgs boson mass window of $115~GeV < m_S < 130~GeV$ while the dark vector boson has a mass between 15 and 300 GeV. The search is conducted using $p-p$ collison data collected using the ATLAS detector at the LHC which corresponds to a center of mass energy of $\sqrt{S} = 13 TeV$ and an integrated luminosity of 139 $fb^{-1}$. There were no significant excesses observed. Therefore, a 95\% upper limit was set on the cross-section $\times$ branching ratio as a function of the mass of both particles $m_S$ and $m_{Z_d}$.
| Apply for student award at which level: | PhD |
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| Consent on use of personal information: Abstract Submission | Yes, I ACCEPT |
