Oct 15, 2020 3:11 pm - Virtual - Colloquium
Jessica Metcalfe - Argonne National Lab
Trends in Multiboson Production at the Large Hadron Collider and Future Prospects

Multiboson physics at the Large Hadron Collider (LHC) provides a unique probe into electroweak physics. Precision measurements of electroweak interactions can probe for hints of interactions that could exist at energies beyond the current reach of the LHC avoiding the requirement to create the particle directly. By looking for small deviations from the Standard Model (SM), effects can be observed from interactions with virtual particles in quantum loops or new amplitudes generated by a tree-level exchange. In an Effective Field Theory (EFT) approach, all possible new interactions are represented by operator terms with anomalous triple and quartic gauge couplings. Therefore, precise measurement of these interactions in multiboson events is a strategic choice for unveiling Beyond SM physics. The trends in multiboson measurements using the ATLAS detector at the LHC will be shown along with prospects for the future.