Higgs and Effective Field Theory - HEFT 2026

Session

Thermal EFT

9 Jun 2026, 09:00

Jardí Botànic, Valencia

80. The high-temperature limit of the SM(EFT)

Mikael Chala (Universidad de Granada)

09/06/2026, 09:00

51. Hot news on the phase structure of the SMEFT

Maria Cristina Fiore (Universidad de Granada)

09/06/2026, 09:30

We perform dimensional reduction of the dimension-six SMEFT to order $g^4$ in coupling constants $g$. This analysis includes one-loop contributions to kinetic terms and quartic couplings; as well as two-loop contributions, where operators such as four-fermion interactions first appear, to squared mass terms. Using lattice data, we provide evidence that, in contrast with previous statements in...

22. Thermal Scalar QED: Finite-Temperature Effective Action and Phase Transition via the Heat-Kernel

Mr Debmalya Dey (IIT Kanpur)

09/06/2026, 09:50

We develop a Heat-kernel based formalism to compute the one-loop thermal effective action relevant for dimensionally reduced 3D Thermal EFT matching. Using this framework, we derive the effective operator basis up to dimension six for the Abelian Higgs model, incorporating the non-perturbative effects of the Polyakov loop, which plays a crucial role in shaping the thermal potential. We discuss...

62. Matchete meets Dimensional Reduction

Mr ADRIÁN Moreno Sánchez (Universidad de Granada)

09/06/2026, 10:10

Dimensional reduction is a key tool for computing the electroweak phase transition in scenarios beyond the Standard Model. Achieving high precision in this framework requires the systematic inclusion of higher-dimensional operators in an EFT approach, a task that rapidly becomes technically challenging.

In this work, we show that functional methods provide a highly efficient and scalable...

50. Symmetry-Based Construction of Heavy-Light Meson EFT: Hilbert Series, Sum Rules, and Finite-Temperature Effects

Siddhartha Karmakar

09/06/2026, 10:30

We develop a unified, symmetry-based effective field theory (EFT) framework for heavy-light meson systems, combining Hilbert series methods, flavor symmetries, and chiral EFT ideas, with a systematic extension to finite-temperature environments.

We construct a complete and non-redundant operator basis for heavy-light meson EFT using Hilbert series techniques, incorporating symmetry...