Multi-Boson interactions 2026

23 Sept 2026, 08:30 → 25 Sept 2026, 15:00 Europe/Zurich

Margarita Salas Auditorium (CIEMAT)

Multi-Boson Interactions (MBI) is an international conference series focusing on the frontiers of latest experimental results, state-of-art theory calculations and future prospects of physics with multi-boson final states (W, Z, gamma, Higgs, ...) at collider experiments. It aims to bring experimentalists and theorists together in order to discuss multi-boson interactions within the contexts of the gauge sector of the standard model and new physics.

MBI is coordinated by the MBI International Advisory Board (IAB) with the hosting venues rotating intercontinentally: 2013 (TU Dresden), 2014 (BNL), 2015 (DESY), 2016 (Wisconsin), 2017 (KIT, Karlsruhe), 2018 (Michigan), 2019 (Thessaloniki), 2020 (pandemic skip), 2021 (Milan), 2022 (Shanghai), 2023 (UC San Diego) 2024 (Toulouse), 2025 (Brandeis), and 2026 (Madrid).

The conference has plenary sessions only, with a mix of invited talks and submitted contributions.

Wednesday 23 September

Registration

Morning session 1

1 Introduction and welcome

2 Measurements in VBF V and VBS VV

3 Overview of MC generators for multi-V production

Speaker: Juergen Reuter (DESY Hamburg, Germany)

10:45 coffee break

Morning session 2

4 Multiboson precision measurements

5 Logarithmic EW corrections at two-loop

Speaker: Jonas Lindert (University of Sussex)

12:45 Lunch break

Evening session 1

6 Triboson physics

7 NLO QCD predictions for Wgammagamma

Speaker: Stefan Kallweit (University of Zurich (CH))

15:30 coffee break

Evening session 2

8 AI/ML for multiboson production and/or future colliders

9 boosted VBS 𝑾±𝑾± H production

Speaker: Alexandro Martone (L2I Toulouse, CNRS/IN2P3, Université de Toulouse)

10 Short talk

18:30 Reception

Thursday 24 September

Morning session 1

11 HH production

12 Theory talk

10:30 coffee break

Morning session 2

13 Impact of Higgs boson measurements in SMEFT global fits

14 EFT searches

12:30 Lunch break

Evening session 1

15 Electroweak Restoration: WZ vs Wh rates in SM, SMEFT, and HEFT

Speaker: Ian Lewis (The University of Kansas)

16 Diboson Polarization and quantum entanglement

15:30 coffee break

Evening session 2

17 SMEFT effects on spin correlations and entanglement at NLO QCD in di-boson production at hadron colliders

Speaker: Giovanni Pelliccioli (Università degli Studi di Milano-Bicocca)

18 Z boson quantum tomography

Speakers: Morgan Del Gratta, Morgan Del Gratta

19 Quantum entanglement between Z-pairs from the Higgs decay

21:00 Conference dinner

Friday 25 September

Morning session 1

20 Theory talk

21 Short talk

22 Short talk

11:15 coffee break

Morning session 2

23 Summary talk

24 Farewell