Beyond standard model physics using lattice methods

Who: Ari Hietanen (CP3-Origins)
When: Wednesday, May 15, 2013 at 10:00
Where: BMB’s seminar room

The standard model of particle physics explains all the observations made in particle accelerators like LHC. But, there are many phenomena in nature which it does not explain, e.g., dark matter, dark energy, inflation, and gravitation. Hence, we know that there must be a more fundamental theory, a theory beyond standard model, to explain these observations. Many of the beyond standard model theories are based on strong dynamics. However, there are no analytical tools to solve such theories, and the best approach to obtain reliable predictions are lattice calculations. In lattice calculations one discretizes the space time and uses computer simulations to study the properties of the theory. The simulations are numerically demanding and require sophisticated algorithms and large clusters or super computers. Also computations with graphics processing units (GPU) are possible. In this presentation, I will review my research on the topic mostly concentrating on two specific models: Minimal Walking Technicolor and Orthogonal Technicolor. I will also discuss briefly the modern algorithms used in the simulations.