The Standard Model of Particle Physics constitutes, to date, the most successful description of fundamental Natural phenomena. It has, however, been recently challenged by a series of precision measurements performed by several high energy experiments both in Europe (CERN) and in the United States (Fermilab). In fact, statistically significant anomalies emerged in the heavy meson physics sector, when measuring the muon magnetic momentum, and very recently when deducing the mass of the W-boson. These anomalies have been critically analyzed and summarized in this work.

Although these anomalies might be superseded, in the future, by new measurements more in line with the Standard Model predictions it is a fact that the current theory of fundamental interactions falls short of explaining the observed baryon-anti baryon asymmetry, i.e. why matter wins over antimatter, and therefore why do we exist at all. Additionally, one can argue that dark matter can’t be explained within the Standard Model as well. We must, therefore, extend or modify the current version of fundamental interactions.

There are two complementary approaches to new physics known as bottom up and top down. The first relies on modelling potential new interactions via a large number of effective operators and the second postulates a more fundamental theory at some higher energy with specific predictions to be tested, for example, at CERN experiments.

Together with experimental colleagues from the CMS collaboration in Napoli we considered a radiative extension of the Standard Model devised to be sufficiently versatile to reconcile the various experimental deviations from the Standard Model while further predicting the existence of new bosons and fermions with a mass spectrum in the TeV energy scale. The resulting spectrum is, therefore, within the energy reach of the proton-proton collisions at the LHC experiments at CERN. Different versions of the model have been investigated earlier in the literature (see the literature cited in the work).

What we find appealing is that the model allows to interpolate between composite and elementary extensions of the Standard Model with emphasis on a new modified Yukawa sector that is needed to accommodate the observed anomalies. Focusing on the radiative regime of the model, we introduced interesting search channels of immediate impact for the ATLAS and CMS experimental programs at CERN such as the associate production of Standard Model particles with either invisible or long-lived particles. We also showed how to adapt earlier SUSY-motivated searchers of new physics to constrain the spectrum and couplings of the new scalars and fermions. Overall, the new physics template simultaneously accounts for the bulk of the observed experimental anomalies while suggesting a wide spectrum of experimental signatures relevant for the current LHC experiments.

We can’t be sure that new physics will emerge at the Large Hadron Collider, but we can surely prepare for it!