Augmenting the diboson excess for Run 2

TL;DR

This paper critically examines the ATLAS diboson excess report, identifying potential issues and suggesting improvements in analysis techniques such as jet substructure and background estimation methods.

Contribution

It provides a detailed analysis of the ATLAS excess, highlighting possible methodological subtleties and proposing enhancements for future analyses.

Findings

Identified potential issues in jet substructure implementation.

Suggested improvements in data-driven background estimation.

Provided insights into the robustness of the observed excess.

Abstract

The ATLAS collaboration recently reported an excess of events in the high invariant mass tail of reconstructed di-boson events. We investigate their analysis and point to possible subtleties and improvements in the jet substructure implementation and data-driven background estimates.