2011/04/30 by Lei Chang, Craig D. Roberts · 2 citations
Mathematics · Physics and Astronomy · #Geometry #High-Energy Particle Collisions Research #Mathematics #Meson #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Pseudovector #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Spectrum (functional analysis) #Symmetry (geometry) #hep-lat #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevc.85.052201
5 pages, 2 figures, 1 table. To appear in Phys. Rev. C (Rapid Comm.)
arxiv created 2012/04/20 · openalex publication_date 2012/05/07 · arxiv updated 2015/05/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We describe a symmetry-preserving calculation of the light-quark meson spectrum, which combines a description of pion properties with reasonable estimates of the masses of heavier mesons, including axial-vector states. The kernels used in formulating the problem are essentially nonperturbative, incorporating effects of dynamical chiral symmetry breaking (DCSB) that were not previously possible to express. Our analysis clarifies a causal connection between DCSB and the splitting between vector and axial-vector mesons and exposes a key role played by the anomalous chromomagnetic moment of dressed quarks in forming the spectrum.