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g(B*B rho) and g(D*D rho) coupling constants in light cone QCD sum rules
Date
1996-01-01
Author
Alıyev, Tahmasıb
Iltan, E
Pak, NK
Metadata
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The decay constants for the strong off-shell B* --> B rho and D* --> D rho decays are calculated in the framework of light cone QCD sum rules. The results are shown to be in agreement with the predictions of the ''classical'' sum rules method, and with those of the vector dominance model.
Subject Keywords
Decays
,
B-meson
,
Asymptotic-behavior
,
Exclusive processes
,
Quantum chromodynamics
,
Form-factors
URI
https://hdl.handle.net/11511/42359
Journal
PHYSICAL REVIEW D
DOI
https://doi.org/10.1103/physrevd.53.355
Collections
Department of Physics, Article
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We calculate the transition formfactors for the B --> Kl(+)l(-) decay in the framework of the light cone QCD sum rules. The invariant dilepton mass distribution and the final lepton longitudinal polarization asymmetry are investigated. The comparison analysis of our results with traditional sum rules method predictions on the formfactors is performed. (C) 1997 Elsevier Science B.V.
Radiative phi -> f(0)(980)gamma decay in light cone QCD sum rules
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The light cone QCD sum rules method is used to calculate the transition form factor for the radiative phi --> f(0gamma) decay, assuming that the quark content of the f(0) meson is pare (s) over bars state. The branching ratio is estimated to be beta(phi --> f(0)gamma) = 3.5 x (1 +/- 0.3) x 10(-4). A comparison of our prediction on branching ratio with the theoretical results and experimental data existing in literature is presented.
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T. Alıyev, E. Iltan, and N. Pak, “g(B*B rho) and g(D*D rho) coupling constants in light cone QCD sum rules,”
PHYSICAL REVIEW D
, pp. 355–360, 1996, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42359.