Related Experiment Video
Updated: Sep 19, 2025

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
The baryon-baryon interaction in the large- N c limit
Thomas Vonk1, Ulf-G Meißner1,2,3
1Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, 53115 Bonn, Germany.
This study simplifies the baryon-baryon potential using large-N_c SU(3) chiral perturbation theory. It reduces low-energy constants and confirms applicability to hyperon-nucleon interactions, showing consistent F/D and C/D ratios.
Area of Science:
- Nuclear Physics
- Quantum Chromodynamics
- Chiral Perturbation Theory
Background:
- Understanding baryon-baryon interactions is crucial in nuclear physics.
- SU(3) chiral perturbation theory provides a framework for these interactions.
- The large-N_c (number of colors) expansion offers insights into QCD dynamics.
Purpose of the Study:
- To analyze the large-N_c structure of the baryon-baryon potential.
- To investigate the impact of SU(3) symmetry breaking from a large-N_c perspective.
- To assess the applicability of leading order results to hyperon-nucleon interactions.
Main Methods:
- Employing SU(3) chiral perturbation theory up to next-to-leading order.
- Including contact interactions and one- and two-meson exchange diagrams.
- Analyzing the large-N_c limit and SU(3) symmetry breaking effects.
Main Results:
- Reduced the number of low-energy constants for contact interactions from fifteen to three.
- Demonstrated successful application of leading order results to the hyperon-nucleon potential.
- Confirmed consistency with specific F/D (2/3) and C/D (2) ratios for baryon couplings.
Conclusions:
- The large-N_c expansion effectively simplifies the baryon-baryon potential.
- SU(3) symmetry breaking can be consistently incorporated within this framework.
- The findings provide a more constrained and applicable model for baryon interactions.
More Related Videos
06:54Characterization of Nanocrystal Size Distribution using Raman Spectroscopy with a Multi-particle Phonon Confinement Model
Published on: August 22, 2015
08:42High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
Published on: October 10, 2014
Related Concept Videos
Reduced Mass Coordinates: Isolated Two-body Problem
Nuclear Binding Energy
Atomic Radii and Effective Nuclear Charge
Trends in Lattice Energy: Ion Size and Charge
Van der Waals Interactions
Diamagnetic Shielding of Nuclei: Local Diamagnetic Current