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

Autor(es)

Fontoura, C. E. ; Haidenbauer, J. ; Krein, G.

• Tipo de documento: Artigo Científico
• Fonte: EUROPEAN PHYSICAL JOURNAL A; v. 53, n. 5 MAY 16 2017.
• Citações Web of Science: 4

Resumo

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 P-3(0) quark-pair creation model and nonrelativistic quark-model wave functions. We focus on the three-meson couplings pi pi rho, KK rho and DD rho and baryon-baryon-meson couplings NN pi N Lambda K and N Lambda D-c. It is found that SU(4)-flavor symmetry is broken at the level of 30% in the DD rho 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. (AU)

• Processo FAPESP: 13/01907-0 - Centro de Pesquisa e Análise de São Paulo
• Beneficiário: Sergio Ferraz Novaes
• Modalidade de apoio: Auxílio à Pesquisa - Temático