Strong<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mi>D</mml:mi><mml:mrow><mml:mo>*</mml:mo></mml:mrow></mml:msup><mml:mo>→</mml:mo><mml:mi>D</mml:mi><mml:mi>π</mml:mi></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mi>B</mml:mi><mml:mrow><mml:mo>*</mml:mo></mml:mrow></mml:msup><mml:mo>→</mml:mo><mml:mi>B</mml:mi><mml:mi>π</mml:mi></mml:mrow></mml:math>couplings

El-Bennich, Bruno; Ivanov, Mikhail A.; Roberts, C. D.

doi:10.1103/physrevc.83.025205

Cited by 65 publications

(77 citation statements)

References 40 publications

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“…The mass and decay constant entries in Table III are all obtained in the lowest-order Chebyshev approximation which is independent of the angle, z p . Incidentally, this approximation bears similarity with common phenomenological Ansätze to the BSA for D mesons [76][77][78][79][80] and this is exactly what the values in Table III represent: masses and decay constants obtained with a model based on the lowest-order approximation for which the eigenvalues and BSA are real. The mass difference, ∆m [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] MeV, between the D and D s mesons is smaller than experimentally observed, i.e.…”

Section: Discussion Of Resultsmentioning

confidence: 76%

Exciting flavored bound states

2014

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We study ground and radial excitations of flavor singlet and flavored pseudoscalar mesons within the framework of the rainbow-ladder truncation using an infrared massive and finite interaction in agreement with recent results for the gluon-dressing function from lattice QCD and DysonSchwinger equations. Whereas the ground-state masses and decay constants of the light mesons as well as charmonia are well described, we confirm previous observations that this truncation is inadequate to provide realistic predictions for the spectrum of excited and exotic states. Moreover, we find a complex conjugate pair of eigenvalues for the excited D (s) mesons, which indicates a nonHermiticity of the interaction kernel in the case of heavy-light systems and the present truncation. Nevertheless, limiting ourselves to the leading contributions of the Bethe-Salpeter amplitudes, we find a reasonable description of the charmed ground states and their respective decay constants.

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Section: Discussion Of Resultsmentioning

confidence: 76%

Exciting flavored bound states

2014

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“…Additionally, in refs. [50,51], two strong couplings, g V P π 0 and g V P π + , are defined as: They can be rewritten using the isospin relationship g V P π + = − √ 2g V P π + ≡ g V P π and relating g V →P π to a universal strong coupling between the heavy vector and pseudoscalar mesons to the pion,ĝ P , withĝ…”

Section: Jhep04(2014)177mentioning

confidence: 99%

Strong and radiative decays of heavy mesons in a covariant model

Cheung

Hwang²

2014

J. High Energ. Phys.

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In this paper, we investigate symmetry breaking effects in strong and radiative decays of heavy mesons. We study 1/m Q corrections within the heavy quark effective theory. These effects are studied in a covariant model for heavy mesons. The numerical results are consistent with the experimental data and some other theoretical calculations. These provide a vote of confidence for the validity of this covariant model.

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“…[4] and references therein. The coupling constantĝ appearing in these articles and our axial-vector coupling constant g appearing in Eq.…”

Section: Discussionmentioning

confidence: 99%

Chiral particle decay of heavy-light mesons in a relativistic potential model

Matsuki¹,

Seo²

2012

Proceedings of Sixth International Conference on Quarks and Nuclear Physics — PoS(QNP2012)

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Partial decay widths of the heavy-light mesons, D, D s , B, and B s , emitting one chiral particle (π or K) are evaluated in the framework of a relativistic potential model. Decay amplitudes are calculated by keeping the Lorentz invariance as far as possible and use has been made of the Lorentz-boosted relativistic wave functions of the heavy-light mesons. New formulation for the decay amplitude is given. One of predictions of our calculation is very narrow widths of a few keV for yet undsicovered B s (0 + , 1 + ) mesons corresponding to 2S+1 L J = 3 P 0 and " 3 P 1 " assuming their masses to be 5617 and 5682 MeV, respectively, as calculated in our former paper. Here double quotation marks denote that they are mixed states between 3 P 1 and 1 P 1 and the dominant states are expressed by those without quotations. In the course of our calculation, new sum rules are discovered on the decay widths in the limit of m Q → ∞. Among these rules,are predicted to hold with a good accuracy. The axial-vector coupling constantĝ = 0.577 used in our paper, which is derived by fitting our decay widths with experiments, is in a good agreement with other calculations, e.g., those derived by the leptonic decay width using the Schwinger-Dyson equation and the lattice QCD. This coupling may be used for the study of dissociation processes π + J/ψ → D +D or π + ϒ → B +B by exchanging D * or B * .

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StrongD→DπandB→Bπcouplings

Cited by 65 publications

References 40 publications

Exciting flavored bound states

Exciting flavored bound states

Strong and radiative decays of heavy mesons in a covariant model

Chiral particle decay of heavy-light mesons in a relativistic potential model

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StrongD*→DπandB*→Bπcouplings

Cited by 65 publications

References 40 publications

Exciting flavored bound states

Exciting flavored bound states

Strong and radiative decays of heavy mesons in a covariant model

Chiral particle decay of heavy-light mesons in a relativistic potential model

Contact Info

Product

Resources

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StrongD→DπandB→Bπcouplings