Search for fermiophobic gauge boson in the dilepton channel with ATLAS, using ATLAS Open Data, sqrt(s)=13 TeV

TL;DR

This paper searches for a heavy fermiophobic Z boson in dilepton final states using ATLAS Open Data at 13 TeV, setting constraints due to no observed excess over background.

Contribution

First search for a fermiophobic Z boson in dilepton channels using ATLAS Open Data at 13 TeV, focusing on vector boson fusion production mechanisms.

Findings

No significant excess observed over background

Constraints set on the production cross-section of the fermiophobic Z

Analysis demonstrates the potential of open data for new physics searches

Abstract

Models with extra gauge symmetry were well motivated extensions of the Standard Model. In this paper, we search for an excess of events in search of a heavy neutral gauge boson Z which is fermiophobic. We are looking at llbb final states where the dilepton channel provides the most stringent constraint on the fermiophobic (FB) model. Since Z is fermiophobic, the production of such particles can occur via vector boson fusion, with subsequent decays into WW or Zh. We observe no significant excess of events over the background-only hypothesis and are able to put the constraint on efficiency times cross-section.