What is a measurement? This, it turns out, is the most difficult question in physics today. In this talk, I will explain why the measurement problem is important and why all attempts to solve it so far have failed. I will then discuss the obvious …
The discovery of the Higgs boson in 2012 by the LHC experiments ATLAS and CMS at the Large Hadron Collider marked a milestone for elementary particle physics. In the meantime the properties of the discovered Higgs boson have been investigated, and …
Many beyond-Standard-Model theories predict light and feebly interacting states that can be efficiently produced in the early universe. From the cosmological perspective, these states behave like Standard-Model neutrinos and can impact on a variety …
The neutrino sector is currently not well constrained and may be hiding new physics beyond neutrino masses. In this talk I will consider a model-independent approach using effective field theory and discuss different ways to probe interactions …
I will show how novel composite dynamics is a primary candidate to explain all of or some of the SM anomalies from the observation of lepton-flavour non universality to $g-2$ and the recent observation of the $W$-mass anomaly. I will also show how …
The simple idea of several Higgs generations is the basis of the $N$-Higgs-doublet model and leads to many model-building opportunities and rich phenomenology. The 2HDM remains a very popular BSM playground, but much interest is now devoted to …
The $b \to s \mu^+ \mu^-$ anomalies constitute a set of measurements which collectively disagree with Standard Model predictions at high significance. We describe a simple anomaly free $Z^\prime$ model (the Third Family Hypercharge Model) and …
The present status of particle physics and some open questions motivating physics beyond the Standard Model (BSM) are briefly reviewed. Theoretical predictions for BSM physics are confronted with the latest experimental results. In particular, recent …
Experimental searches typically publish limits on not only specific models, but specific scenarios within a model. For a theorist to confront a different model or scenario to the latest limits therefore requires a whole chain of tools and …
Over the past decade, the discovery of the Higgs boson and the remarkably precise measurement of its mass at the LHC have spurred new efforts aimed at improving the accuracy of the theoretical predictions for the Higgs masses in SUSY models. In this …