Event Category: 4D Seminar

4D Seminar series:
Monday at 2:30 on campus

Abstract: Lattice QCD is the only known systematically improvable tool we have for the determination of non-perturbative QCD observables from first principles. However, in its standard incarnation, the study of scattering observables beyond the three-particle energy threshold has been hindered by a number of challenges due to its Euclidean nature. In this talk I will give motivation for the lattice … Read More

n the first three quarters of the talk, I will explain how cosmology sets the strongest constraints yet on long-range dark matter self-interactions at length scales shorter than 100 kpc. In the last quarter, hopefully, I will briefly discuss the early-universe dynamics of an ultralight scalar dark matter coupled to neutrinos, focusing on the dissipative backreaction of the neutrinos on … Read More

Abstract: We will discuss how to systematically study physics beyond the standard model (BSM) in neutrino experiments within the Standard Model Effective Field Theory (SMEFT) framework. In this way, the analysis of the data can capture large classes of models, where the new degrees of freedom have masses well above the relevant energy of the experiments. Moreover, it allows us to … Read More