Conveners
Parallel 6
- Antonio Pich (IFIC, CSIC-UV)
In the context of gauge-Yukawa theories with trans-Planckian asymptotic safety, quantum scale symmetry can prevent the appearance in the Lagrangian of couplings that would otherwise be allowed by the gauge symmetry. Such couplings correspond to irrelevant Gaussian fixed points of the renormalization group flow. Their absence in the theory implies that different sectors of the gauge-Yukawa...
To address the smallness of neutrino masses and the observed large neutrino mixing, we propose a hybrid framework that synergistically combines the canonical seesaw mechanism with radiative mass generation. This model is embedded in the A₄ non-Abelian discrete flavor symmetry, whose spontaneous breaking generates correct neutrino mixing patterns and stabilizes dark matter through a conserved...
The Standard Model successfully describes particle physics but cannot explain neutrino oscillations, the baryon asymmetry of the universe (BAU), and dark matter. The Aoki-Kanemura-Seto (AKS) model is a new physics model that can explain these three phenomena simultaneously at TeV scale testable by future experiments. However, in the original model published in 2009, the baryon number was not...
We study Higgs pair production in lowest order (LO) Higgs effective Field Theory (HEFT) and Standard Model Effective Field Theory (SMEFT) at dimension 6. Inspired by the ``Loryon'' models, we study which effective field theory one should concretely use and whether one might be able to probe models that realise HEFT rather than SMEFT. We find that in certain region of the parameter space the...
High-precision calculations of Higgs boson observables can be used to constrain models of Beyond the Standard Model (BSM) physics. Motivated by the non-observation of light BSM particles at the LHC, I will discuss a renormalization scheme that enables precise predictions of Higgs boson decays in the presence of moderately heavy BSM physics at the one-loop level. I will outline the basics of...
$\texttt{FlexibleDecay}$ is an extension of the spectrum-generator generator $\texttt{FlexibleSUSY}$ which allows to calculate Higgs boson decay rates and branching ratios for their respective decay channels in arbitrary BSM models. For that purpose, the so-called Decoupling Renormalization Scheme is employed. It is constructed such that non-decoupling effects in the case of heavy BSM-physics...
FlexibleSUSY is a framework for an automated computation of physical quantities in non-supersymmetric and supersymmetric models starting from the most basic model building blocks, namely the particle content and the Lagrangian. Among a plethora of observables that it supports, it is also capable of computing decay widths of Higgs sector particles with precision comparable to the current...
