Multi-Boson Interactions at the LHC

TL;DR

This review summarizes LHC results on electroweak boson pair production and vector boson fusion, focusing on limits on anomalous gauge couplings and implications for new physics searches.

Contribution

It provides a comprehensive summary of experimental limits on anomalous gauge couplings from ATLAS and CMS, and reviews their interpretation within effective field theory.

Findings

Limits on anomalous triple gauge couplings (aTGCs) established.

Limits on anomalous quartic gauge couplings (aQGCs) established.

Recommendations for testing other new physics models using multi-gauge boson production.

Abstract

This review covers results on the production of all possible electroweak boson pairs and 2-to-1 vector boson fusion at the CERN Large Hadron Collider (LHC) in proton-proton collisions at a center of mass energy of 7 and 8 TeV. The data were taken between 2010 and 2012. Limits on anomalous triple gauge couplings (aTGCs) then follow. In addition, data on electroweak triple gauge boson production and 2-to-2 vector boson scattering yield limits on anomalous quartic gauge boson couplings (aQGCs). The LHC hosts two general purpose experiments, ATLAS and CMS, which have both reported limits on aTGCs and aQGCs which are herein summarized. The interpretation of these limits in terms of an effective field theory is reviewed, and recommendations are made for testing other types of new physics using multi-gauge boson production.