Vertices of the vector mesons with the strange charmed mesons in QCD

Khosravi, R.; Janbazi, M.

doi:10.1103/physrevd.87.016003

Cited by 33 publications

(26 citation statements)

References 27 publications

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“…It is clearly that our result is compatible well with that of Refs. [42,43], which indicates to some extent the reliability of our result. (43) Now, it is time for us to give an analysis of electromagnetic decay D * s → D s γ .…”

Section: Resultssupporting

confidence: 72%

“…This difference is most probably due to the different input parameters and the different methods employed. In Reference [42,43], it is indicated that the value of G Ds * Dsφ is 4.07 ± 0.71 GeV −1 in the framework of the three-point QCD sum rules. Besides of the perturbative part, the contributions of quark-quark, gluon-gluon, and quark-gluon condensate are considered in this work.…”

Section: Resultsmentioning

confidence: 99%

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Analysis of the strong coupling constant $$G_{D_{s}^{}D_{s}\phi }$$ G D s ∗ D s ϕ and the decay width of $$D_{s}^{}\rightarrow D_{s}\gamma $$ D s ∗ → D s γ with QCD sum rules

Wang

2015

Eur. Phys. J. C

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In this article, we calculate the form factors and the coupling constant of the vertex D * s D s φ using the threepoint QCD sum rules. We consider the contributions of the vacuum condensates up to dimension 7 in the operator product expansion. And all possible off-shell cases are considered, φ, D s and D * s , resulting in three different form factors. Then we fit the form factors into analytical functions and extrapolate them into time-like regions, which giving the coupling constant for the process.

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Section: Resultssupporting

confidence: 72%

Section: Resultsmentioning

confidence: 99%

Analysis of the strong coupling constant $$G_{D_{s}^{}D_{s}\phi }$$ G D s ∗ D s ϕ and the decay width of $$D_{s}^{}\rightarrow D_{s}\gamma $$ D s ∗ → D s γ with QCD sum rules

Wang

2015

Eur. Phys. J. C

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“…The strong form factors are calculated by equating two representations of the correlation function and applying the Borel transformations [20] with respect to the p 2 …”

Section: Introductionmentioning

confidence: 99%

Analysis of $$D_s D K^*$$ D s D K ∗ and

Janbazi

Khosravi

2018

Eur. Phys. J. C

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In this paper, the strong form factors and coupling constants of D s DK * and D s D * K * vertices are investigated within the three-point QCD sum rules method with and without the SU f (3) symmetry. In this calculation, the contributions of the quark-quark, quark-gluon, and gluongluon condensate corrections are considered. As an example of specific application of these coupling constants, the branching ratio of the hadronic decay B + → K * 0 π + is analyzed based on the one-particle-exchange which is one of the phenomenological models. In this model, B decays into a D s D * intermediate state, and then these two particles exchange a D(D * ) producing the final K * and π mesons. In order to compute the effect of these interactions, the D s DK * and D s D * K * form factors are needed.

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“…Theoretical calculations of parameters related to these mesons were fulfilled applying various nonperturbative approaches and schemes, such as the lattice QCD calculations [7], the QCD and three-point sum rule methods (for instance, see [8][9][10][11][12][13][14][15]), and different quark models [16,17]. By this way, masses, strong couplings and form factors of some bottom(charm)-strange mesons were obtained.…”

Section: Introductionmentioning

confidence: 99%

StrongDs*Dsη(′)andBs

2015

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Vertices of the vector mesons with the strange charmed mesons in QCD

Cited by 33 publications

References 27 publications

Analysis of the strong coupling constant $$G_{D_{s}^{}D_{s}\phi }$$ G D s ∗ D s ϕ and the decay width of $$D_{s}^{}\rightarrow D_{s}\gamma $$ D s ∗ → D s γ with QCD sum rules

Analysis of the strong coupling constant $$G_{D_{s}^{}D_{s}\phi }$$ G D s ∗ D s ϕ and the decay width of $$D_{s}^{}\rightarrow D_{s}\gamma $$ D s ∗ → D s γ with QCD sum rules

Analysis of $$D_s D K^*$$ D s D K ∗ and

StrongDs*Dsη(′)andBs

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Vertices of the vector mesons with the strange charmed mesons in QCD

Cited by 33 publications

References 27 publications

Analysis of the strong coupling constant $$G_{D_{s}^{*}D_{s}\phi }$$ G D s ∗ D s ϕ and the decay width of $$D_{s}^{*}\rightarrow D_{s}\gamma $$ D s ∗ → D s γ with QCD sum rules

Analysis of the strong coupling constant $$G_{D_{s}^{*}D_{s}\phi }$$ G D s ∗ D s ϕ and the decay width of $$D_{s}^{*}\rightarrow D_{s}\gamma $$ D s ∗ → D s γ with QCD sum rules

Analysis of $$D_s D K^*$$ D s D K ∗ and

StrongDs*Dsη(′)andBs

Contact Info

Product

Resources

About

Analysis of the strong coupling constant $$G_{D_{s}^{}D_{s}\phi }$$ G D s ∗ D s ϕ and the decay width of $$D_{s}^{}\rightarrow D_{s}\gamma $$ D s ∗ → D s γ with QCD sum rules

Analysis of the strong coupling constant $$G_{D_{s}^{}D_{s}\phi }$$ G D s ∗ D s ϕ and the decay width of $$D_{s}^{}\rightarrow D_{s}\gamma $$ D s ∗ → D s γ with QCD sum rules