Deborah Rönchen | CRC 1639 NuMeriQS

Comments on Baryon Transition Form Factors

Thu, 01 Jan 2026 00:00:00 +0000

Coupled-channel contributions to the GDH sum rule from the Jülich-Bonn approach

Fri, 01 Aug 2025 00:00:00 +0000

The nature of the $P_c$ states from compositeness criteria

Sun, 01 Jun 2025 00:00:00 +0000

Global Data-Driven Determination of Baryon Transition Form Factors

Sun, 01 Sep 2024 00:00:00 +0000

Exploration of the LHCb $P_c$ states and possible resonances in a unitary coupled-channel model

Wed, 01 May 2024 00:00:00 +0000

B05

Sat, 20 Jan 2024 17:07:25 +0100

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.