The SMEFT provides a general framework to search for new physics beyond the current reach of direct detection. One such form of new physics is quantum gravity. Based on dimensional analysis, one would expect the prediction that the quantum-gravity contribution to the SMEFT coefficients is unmeasurably tiny at LHC scales. In this paper, we test this expectation in a specific framework for...
Motivated by the evidence of spin polarization in particles produced by relativistic heavy ion collisions, there is growing interest in the so-called relativistic spin hydrodynamics. In this talk, we will present the outcomes of using first-principle quantum-statistical methods to derive the expression for the entropy production rate in relativistic fluids composed of particles with spin....
Self-Interacting Dark Matter models offer a compelling framework for explaining dark matter production through interactions confined within the dark sector. Introducing a feeble coupling between the dark and visible sectors via a Higgs portal not only opens up new avenues for detection and enriches thermal production dynamics but also provides a potential explanation for the initial dark...
Certain types of large-$N$ gauge theories coupled to matter offer interacting UV fixed points that are under strict perturbative control, beyond the paradigm of asymptotic freedom. In this work, we derive and investigate functional RG equations for the quantum effective potential of the theory to leading order in a derivative expansion. We thereby find the RG flows, fixed points, and scaling...
