B05
A Novel Approach to the Baryon Spectrum Based on Stochastic Methods
The goal of this project is to determine the spectrum of baryon resonances which encodes the key to understand the strong force at medium energies. The extraction of the spectrum from data is challenging and sophisticated, but numerically very costly, dynamical coupled-channel models are the method of choice. A systematic quantification of uncertainties, however, is so far not possible. This project proposes to transition to Bayesian parameter estimation using the Hamiltonian Monte Carlo (HMC) algorithm, allowing for a determination of resonance parameter uncertainties in a statistically well-defined way. This innovation will raise baryon spectroscopy to the next level of precision.
Ulf-G. Meißner
Professor of Theoretical Physics
My research focuses on the strong interactions in their various settings, in particular Nuclear Lattice Effective Field Theory, aspects of the the hadron spectrum (hadronic molecules, two-pole structures) and low-dimensional strongly correlated electronic systems, and effective field theories in general. Most of these topics require HPC.
