QED contributions to Ξ c + − Ξ c ′ + mixing
We explore the quantum electrodynamic (QED) corrections to the Ξ c + − Ξ c ′ + mixing within the framework of light-front quark model (LFQM) in the three-quark picture. After explicitly investigating the relation between the Ξ c − Ξ c ′ mixing and the flavor SU(3) and heavy quark symmetry breaking,...
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Veröffentlicht in: | Physical review. D 2024-02, Vol.109 (3), Article 036014 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | We explore the quantum electrodynamic (QED) corrections to the
Ξ
c
+
−
Ξ
c
′
+
mixing within the framework of light-front quark model (LFQM) in the three-quark picture. After explicitly investigating the relation between the
Ξ
c
−
Ξ
c
′
mixing and the flavor SU(3) and heavy quark symmetry breaking, we derive the QED contributions to the
Ξ
c
+
−
Ξ
c
′
+
mixing angle. Numerical results indicate the QED contribution is smaller than the one from the mass difference between the strange and up/down quark provided by a recent lattice quantum chromodynamics analysis. Adding these contributions together we find that at this stage the
Ξ
c
+
−
Ξ
c
′
+
mixing is small and still incapable to account for the large SU(3) symmetry breaking in the semileptonic
Ξ
c
decays. |
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ISSN: | 2470-0010 2470-0029 |
DOI: | 10.1103/PhysRevD.109.036014 |