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Arts & Sciences
[PAST EVENT] Physics Colloquium - Hansen
February 11, 2016
4pm - 5pm
Abstract:
One of the most important ideas in physics is that of effective theories. This is based on the simple observation that different tools are required to describe systems of vastly different sizes. Starting here, I will introduce the Standard Model as the most effective known description of the smallest lengths we can measure. I will then turn attention to quantum chromodynamics (QCD), the part of the Standard Model that describes the strong force, responsible for protons, neutrons and the nuclei they form. QCD has a fascinating, rich structure that has proven highly challenging for theorists to understand. I will give motivation for using a space-time lattice to study QCD and will give various examples to illustrate the method, with particular focus on scattering predictions.
One of the most important ideas in physics is that of effective theories. This is based on the simple observation that different tools are required to describe systems of vastly different sizes. Starting here, I will introduce the Standard Model as the most effective known description of the smallest lengths we can measure. I will then turn attention to quantum chromodynamics (QCD), the part of the Standard Model that describes the strong force, responsible for protons, neutrons and the nuclei they form. QCD has a fascinating, rich structure that has proven highly challenging for theorists to understand. I will give motivation for using a space-time lattice to study QCD and will give various examples to illustrate the method, with particular focus on scattering predictions.