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- Title
Spectrum of Hadrons with Strangeness.
- Authors
Chen, Chen; Chang, Lei; Roberts, Craig; Wan, Shaolong; Wilson, David
- Abstract
We describe a calculation of the spectrum of strange and nonstrange hadrons that simultaneously correlates the dressed-quark-core masses of meson and baryon ground- and excited-states within a single framework. The foundation for this analysis is a symmetry-preserving Dyson-Schwinger equation treatment of a vector×vector contact interaction. Our results exemplify and highlight the deep impact of dynamical chiral symmetry breaking on the hadron spectrum: an accurate description of the meson spectrum entails a similarly successful prediction of the spectrum of baryons, including those with strangeness. The analysis also provides numerous insights into baryon structure. For example, that baryon structure is largely flavour-blind, the first radial excitation of ground-state baryons is constituted almost entirely from axial-vector diquark correlations, and DCSB is the foundation for the ordering of low-lying baryon levels; viz., (1/2), (1/2), (1/2).
- Subjects
HADRON spectra; STRANGE particles; QUARKS; MESONS; BARYONS; GROUND state (Quantum mechanics); SYMMETRY (Physics)
- Publication
Few-Body Systems, 2012, Vol 53, Issue 3-4, p293
- ISSN
0177-7963
- Publication type
Article
- DOI
10.1007/s00601-012-0466-3