COMETA Colloquium: Matteo Presilla

Monday 30 Mar 2026, 14:00 → 16:00 Europe/Zurich

This event is organised by the COMETA COST Action, a EU-funded networking initiative that promotes knowledge sharing and cooperation across the theory, experiment, and ML communities, with the aim of improving the measurement and interpretation of multiboson processes at the LHC.

Find recordings of all COMETA Colloquia on our youtube channel @multibosons!

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14:00 → 15:00 Decoding electroweak symmetry breaking with Vector Boson Scattering: the latest results from CMS and ATLAS

Vector boson scattering (VBS) offers a unique window into the electroweak sector and the mechanism of electroweak symmetry breaking. The ATLAS and CMS experiments at CERN have performed increasingly precise measurements of VBS processes, exploring complex and previously inaccessible final states, thereby significantly improving our understanding of these rare electroweak interactions. In this seminar, I will review recent CMS and ATLAS VBS measurements and discuss the main experimental challenges and analysis strategies employed to isolate these processes, with particular emphasis on the new combination of VBS measurements with fully leptonic and semi-leptonic final states using LHC Run 2 data from CMS. Finally, I will discuss the sensitivity of VBS to the indirect presence of physics beyond the Standard Model in the framework of Effective Field Theory (EFT) and its role in future global fits.

Matteo Presilla is a postdoctoral researcher at the Institute of Experimental Particle Physics (ETP) of Karlsruhe Institute of Technology, and a member of the CMS and Future Circular Collider collaborations. His work focuses on precision multiboson and Higgs measurements, alongside BSM searches in SMEFT, composite models, and heavy Majorana neutrinos at LHC and future colliders. In VBS physics, he contributed to key CMS results: semileptonic electroweak measurements, same-sign WW scattering with hadronic taus, and the recent Run 2 VBS combination. He is one of the WG3 leaders of COST Action COMETA and was convener of the LHC EFT Working Group and CMS EFT Forum. He earned his PhD at University of Padova/CERN, followed by an INFN postdoctoral fellowship.

Speaker: Matteo Presilla (KIT - Karlsruhe Institute of Technology (DE))