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COMETA workshop on BSM in Multiboson Processes

8–10 Jul 2026
Europe/Sarajevo timezone

Contribution List

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  1. 10. CP Violation Beyond the Standard Model: A Bosonic Perspective
    Rui Santos (ISEL and CFTC-UL)
    08/07/2026, 09:25
  2. 11. SUSY meets SMEFT
    Felix Wilsch (RWTH Aachen University)
    08/07/2026, 09:55
  3. 12. The Geometry of Unitarity Bounds in Effective Field Theories
    Luigi C. Bresciani (University of Padova & INFN-PD)
    08/07/2026, 10:20
  4. 15. Multi boson processes in EFTs from on-shell amplitude techniques
    Michal Jakub Ryczkowski (Università di Padova and INFN, Sezione di Padova)
    08/07/2026, 11:20
  5. 14. The inseparable three and four tops
    Gauthier Durieux (CP3 - UCLouvain)
    08/07/2026, 11:45
  6. 13. A Covariant Formalism of Effective Field Theories
    Mohammad Alminawi
    08/07/2026, 12:10
  7. 16. Decays of quarkonia and why they are important
    Dr Damir BECIREVIC (IJCLab, CNRS and Université Paris-Saclay)
    08/07/2026, 14:35
  8. 17. Towards Optimal BSM Sensitivity in Multiboson Processes
    Henning Bahl
    08/07/2026, 15:00
  9. 8. Novel Background for BSM searches in VBS in the scalar channel
    Sofie Martins (University of Graz)
    08/07/2026, 15:25

    BSM in the process $VV\rightarrow H^* \rightarrow VV$ can arise in two ways: As an effective extension of a composite Higgs at low energies or by a deviation hinting at a close-by resonance at high energies. It is thus necessary to control the standard model in these regions to high precision. We present novel standard model backgrounds, alongside lattice estimates for them, which arise from a...

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  10. 18. Exotic h → Za Higgs decays into τ leptons
    Camila Ramos
    08/07/2026, 15:50
  11. 19. CP violation in loop-induced diboson production
    Marion Thomas (Max Planck Institut für Physik)
    08/07/2026, 16:45
  12. 20. Sensitivity to top-quark couplings in diboson production at lepton colliders
    Eugenia Celada
    08/07/2026, 17:10
  13. 21. Impact of loop corrections to trilinear scalar couplings on di-Higgs production
    Johannes Alf Braathen (DESY)
    08/07/2026, 17:35
  14. 22. gg→ZH : updated predictions at NLO QCD
    Benjamin Campillo Aveleira
    08/07/2026, 18:00
  15. 23. A global analysis of ALP-mediated multiboson production at the LHC
    Fabian Esser
    09/07/2026, 09:30
  16. 5. New Bosons from a Deformed Massless-Up-Quark Solution to the Strong CP Problem: Is the Axion Hiding in Plain Sight?
    Luca Di Luzio
    09/07/2026, 09:55

    In a recent paper, Murayama proposed a GeV-scale axion scenario in which the up-quark mass arises dynamically from the QCD chiral condensate, which also spontaneously breaks a Peccei-Quinn symmetry. If correct, the QCD axion may already be hidden among the known pseudoscalar resonances in the 1-2 GeV region, accompanied by a scalar partner predicted by the same framework. The proposal,...

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  17. 24. Is doublet-triplet splitting necessary?
    Ilja Doršner
    09/07/2026, 10:20
  18. 25. A Composite Theory of Higgs and Flavour
    Joe Davighi (University of Cambridge (GB))
    09/07/2026, 11:15
  19. 26. Baryogenesis and the interplay with multi-boson processes
    Thomas Biekoetter
    09/07/2026, 11:40
  20. 27. Testing SFOEWPT scenarios in 2HDM at FCC-ee
    Anisha . (Karlsruhe Institute of Technology)
    09/07/2026, 12:05
  21. 30. Resonant SH/HH searches
    Christina Dimitriadi (KTH Royal Institute of Technology (SE))
    09/07/2026, 14:30
  22. 31. Triple-gauge couplings in LHC diboson production: a SMEFT view from every angle
    Hesham El Faham (The University of Manchester)
    09/07/2026, 14:55
  23. 28. SMEFT interpretations in Diboson analyses
    Antonio Manuel Mendes Jacques Da Costa (The University of Manchester (GB))
    09/07/2026, 15:20
  24. 29. Interference effects in Higgs pair production
    Kateryna Radchenko Serdula (DESY)
    09/07/2026, 15:45
  25. 35. Public outreach talk (in Bosnian)
    Admir Greljo
    09/07/2026, 17:00
  26. 7. Probing Z' Models at Future Colliders
    Barbara Anna Erdelyi (Università degli Studi di Padova and INFN Sezione di Padova)
    10/07/2026, 09:15

    Several models of grand unification predict the existence of an additional gauged $U(1)_D$ symmetry, which gives rise to a new heavy neutral gauge boson $Z'$ at the TeV scale. In general, the Standard Model particles may be charged under this new symmetry, with gauge coupling $g_D$, and the $Z'$ can exhibit a kinetic mixing $\epsilon$ with the hypercharge gauge boson as well. Future...

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  27. 32. Complementary Probes to Rare Higgs Decays at Multi-TeV Lepton Colliders
    Arman Korajac
    10/07/2026, 09:40
  28. 33. New avenues for |∆B| = 2 processes beyond neutron-antineutron oscillations
    S Fajfer
    10/07/2026, 10:05
  29. 34. Expanding the Landscape of Exotic Muon Decays
    Ajdin Palavric (IFIC Valencia)
    10/07/2026, 10:30
  30. 36. HHH searches from an experimental perspective
    Greg Landsberg (Brown University (US))
    10/07/2026, 11:25
  31. 37. Rare lepton transitions: the multi-boson perspective
    Jure Zupan (University of Cincinnati)
    10/07/2026, 11:55
  32. 4. Exotic h → Za Higgs decays into τ leptons
    Camila Ramos

    Exotic Higgs decays are among the most promising areas to be explored at the High-Luminosity LHC, given the unprecedentedly large amount $(\sim 3 \times 10^8)$ of 125 GeV Higgs bosons that will be produced. In this context, we propose a new search channel for which the Higgs boson decays to a (leptonically decaying) $Z$ boson and a light BSM pseudoscalar $a$, which subsequently decays to a...

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  33. 3. Multi boson processes in EFTs from on-shell amplitude techniques
    Michal Jakub Ryczkowski (Università di Padova and INFN, Sezione di Padova)

    Multi-boson processes are essential for probing the nature and dynamics of the Higgs boson and its interactions with massive vector bosons.

    In this talk, we apply on-shell amplitude techniques to study multi-boson processes involving massive vectors and scalars. We construct the relevant kinematic structures, match the results to both the Higgs Effective Field Theory (HEFT) and the Standard...

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  34. 9. Recovering LHC sensitivity to GGM in photon-deficient regions with boosted objects and machine learning
    Mr Debabrata Sahoo (Institute of Physics Bhubaneswar)

    We propose a comprehensive search strategy for gluinos in the framework of General Gauge Mediation (GGM) at the high-luminosity LHC. Conventional GMSB searches at the LHC rely on a final state with multiple hard photons originating from the decay of a bino-higgsino-mixed NLSP into a gravitino LSP. As we have shown in our previous work, this strategy loses sensitivity over a significant portion...

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  35. 6. Sensitivity to top-quark couplings in diboson production at lepton colliders
    Eugenia Celada

    We show results for the next-to-leading order electroweak corrections to $e^+e^− \to W^+W^−$ from dimension-six two-fermion top-quark operators in the SMEFT. We discuss the analytical computation and show results for future electron–positron colliders,focusing on the proposed LEP3 and FCC-ee that will operate at centre of mass energies below the $t\bar t$ production threshold. We compare the...

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