DeNuTra - The Nucleon Delta Transition Form Factor using Lattice QCD
The abundance of matter versus antimatter, the small but finite neutron electric dipole moment, the mass of the neutrino, the interior of neutron stars, and the origin of dark matter are all central mysteries in particle physics, both experimentally and theoretically. Key to understanding these phenomena are the couplings of light resonances with electromagnetic currents, which reveal the internal structure of the corresponding resonances. This project focuses on the lightest baryonic resonance in nature, the Delta baryon. We aim to study the photoproduction and decay of the Delta baryon, particularly the nucleon to Delta transition, by combining experimental and theoretical efforts to determine the transition form factors. Our approach includes large-scale computer simulations and the pioneering application of the Lellouch-Luescher finite volume formalism to baryonic resonance.
This project is linked to ongoing and planned experiments at JLab and MAMI, targeting the precision frontier and the internal structure of the Delta resonance. The results will significantly impact both phenomenology and experimental communities. Specifically, the project will provide first-principles results for the two-hadron spectrum of the finite volume Hamiltonian, influencing lattice QCD and enabling researchers to constrain the analytical form of the scattering amplitude from chiral unitary and phenomenological models. Furthermore, this project will serve as a prototype application, establishing methodologies for subsequent theoretical studies on higher baryon resonances (N(1440), N(1535), Lambda(1380), Lambda(1405)) and matrix elements between resonance states.
CyI Principal Investigator: Dr. Ferenc Pittler
Additional Info
- Acronym: DeNuTra
- Website: Under construction
- Center: CaSToRC
- Funding Source: RIF/EXCELLENCE/0524
- CyI Funding: €200,000
- Funding Period: --
- Starting Date: 01/03/2025
- End Date: 28/02/2027
- Coordinator: THE CYPRUS INSTITUTE
-
Partners:
Foreign Research Organizations: The University of Arizona
