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SU(4) flavor symmetry breaking in D-meson couplings to light hadrons

2017/05/01 by C. E. Fontoura, J. Haidenbauer, G. Krein · 14 citations
Physics and Astronomy · #Baryon #Hadron #High-Energy Particle Collisions Research #Lambda #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Quark model #Quarkonium #Rho meson #Symmetry (geometry) #hep-ph #nucl-th

paper · pdf · doi:10.1140/epja/i2017-12289-2

published in The European Physical Journal A 53(5) (Springer Science+Business Media) · 5 pages, 3 figures

openalex publication_date 2017/05/01 · arxiv created 2017/05/26 · arxiv updated 2017/05/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The validity of SU(4)-flavor symmetry relations of couplings of charmed D-mesons to light mesons and baryons is examined with the use of 3 P 0 quark-pair creation model and nonrelativistic quark-model wave functions. We focus on the three-meson couplings ππρ , KKρ and DDρ and baryon-baryon-meson couplings NNπ , NΛ K and NΛc D . It is found that SU(4)-flavor symmetry is broken at the level of 30% in the DDρ tree-meson couplings and 20% in the baryon-baryon-meson couplings. Consequences of these findings for DN cross sections and existence of bound states D-mesons in nuclei are discussed.

Citations