Vector boson scattering at high mass with ATLAS

TL;DR

This paper discusses the potential of the ATLAS detector to study high-mass vector boson scattering processes, which are crucial for understanding electroweak symmetry breaking in the absence of a light Higgs boson.

Contribution

It evaluates ATLAS's capability to measure di-boson cross-sections and reconstruct boosted vector boson decays, aiding searches for resonances in vector boson scattering.

Findings

ATLAS can measure di-boson cross-sections across various energies.

Reconstruction of low opening angle jet pairs is feasible.

Potential to identify scalar and vector resonances.

Abstract

In the absence of a light Higgs boson, the mechanism of electroweak symmetry breaking will be best studied in processes of vector boson scattering at high mass. Various models predict resonances in this channel. Scalar and vector resonances have been investigated in the WW, WZ and ZZ channels. The ability of ATLAS to measure the di-boson cross-section over a range of centre-of-mass energies has been studied with particular attention paid to the reconstruction of jet pairs with low opening angle resulting from the decays of highly boosted vector bosons.