Analysis of \(D_s^\ast D^\ast K^\ast\) and \(D_{s 1} D_1 K^\ast\) vertices in three-point sum rules (Q1626102)
From MaRDI portal
scientific article
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Analysis of \(D_s^\ast D^\ast K^\ast\) and \(D_{s 1} D_1 K^\ast\) vertices in three-point sum rules |
scientific article |
Statements
Analysis of \(D_s^\ast D^\ast K^\ast\) and \(D_{s 1} D_1 K^\ast\) vertices in three-point sum rules (English)
0 references
26 November 2018
0 references
Summary: In this study, the coupling constants of \(D_s^\ast D^\ast K^\ast\) and \(D_{s 1} D_1 K^\ast\) vertices were determined within the three-point Quantum chromodynamics sum rules method with and without consideration of the \(S U_f(3)\) symmetry. The coupling constants were calculated for off-shell charm and \(\mathrm{K}^\ast\) cases. Considering the nonperturbative effect of the correlation function, as the most important contribution, the quark-quark, quark-gluon, and gluon-gluon condensate corrections were estimated and were compared with other predictive methods.
0 references
