Partikeldagarna 2025

Session

Tuesday morning session

25 Nov 2025, 09:00

Scaniasalen (Chalmers Conference Centre)

31. Theoretical particle physics at Uppsala University

Rikard Enberg (Uppsala University)

25/11/2025, 09:00

I will give an overview of the research on physics beyond the Standard Model, collider physics, astroparticle/early universe physics and gravitational waves in the Theoretical Particle Physics group at Uppsala University.

26. Finite-volume QED for precision physics

Nils Hermansson-Truedsson (lu.se)

25/11/2025, 09:20

Non-perturbative effects in precision calculations involving QCD at low energies must be handled with tools such as lattice and effective field theory. The achievable level of precision in many modern experiments demands that electromagnetic effects in addition to QCD be included in theoretical calculations. In lattice QCD where simulations are performed in non-physical Euclidean spacetimes of...

6. 3HDM Unveiled: From Theory to Smoking Gun Signals at Future Colliders

Atri Dey (Postdoc, High Energy Physics, Uppsala University)

25/11/2025, 09:35

In this talk, I will explore several aspects of the Three-Higgs Doublet Model (3HDM) and discuss the strong theoretical motivations that make it a compelling extension of the Standard Model (SM). The 3HDM not only offers intriguing possibilities to address some of the long-standing shortcomings of the SM but also provides unique phenomenological features. I will highlight a set of distinctive...

14. Renormalizability and UV behavior of 5D gauge theories

Anca Preda (lu.se)

25/11/2025, 09:50

The idea of supplementing the number of spacetime dimensions has long been deemed as one of the potential extension of the Standard Model, as it provides powerful tools to explain some of its shortcomings. One example of higher-dimensional formulations are asymptotic grand unified theories (aGUTs), for which the couplings do not meet at a high scale, but instead flow together towards a fixed...

9. Confronting the production mechanisms of nuclei at the LHC with deuteron and proton-triggered balance functions

Dr Sushanta Tripathy (Lund University, Sweden)

25/11/2025, 10:05

A hot topic at the Large Hadron Collider (LHC) is the production of anti-nuclei. In ultra high-energy collisions, nuclei with very low binding energies are not expected to survive the dense and hot final state environment. The traditional view of nuclei production has been that antinuclei form via coalescence after the hot environment has dissipated. However, statistical thermal models, where...

25. Deconstruction of resonant Higgs pair production cross section in the NMSSM

Harri Waltari (Uppsala University)

25/11/2025, 10:20

We discuss the resonant production of Higgs pairs and its interference with the non-resonant di-Higgs production in the NMSSM. We deconstruct the differential cross section to different contributions arising from Standard Model box and triangle diagrams, resonant diagrams arising from heavy Higgs bosons, squark diagrams and the interferences between them. Interference lead to substantial...