CPT Colloquia

The failure of naturalness

by Tevong You


The lack of new physics Beyond the Standard Model (BSM) at the CERN Large Hadron Collider may be the most significant null result since the Michelson-Morley experiment. This talk will review the implications of a possible failure of naturalness arguments in the context of the Effective Field Theory (EFT) paradigm, and its theoretical implications for BSM physics. Regardless of naturalness, a next generation of general-purpose "particle observatories" is essential to further explore and understand our universe in new regimes at even smaller scales, in the same way astrophysical and cosmological observatories will continue to push forward the science done on larger scales. I will focus on the proposed Future Circular Collider (FCC) at CERN as an example of the wide-ranging physics programme that such a particle observatory can achieve