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Radiative B-*->B gamma and D-*->D gamma decays in light-cone QCD sum rules
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Date
1996-07-01
Author
Alıyev, Tahmasıb
Iltan, E
Pak, NK
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The radiative decays B*(D*)-->B(D)gamma are investigated in the framework of light-cone QCD sum rules. The transition amplitude and decay rates are estimated. It is shown that our results for the branching ratios of D meson decays are in good agreement with the existing experimental data.
Subject Keywords
Foorm-factors
,
B-meson
URI
https://hdl.handle.net/11511/37958
Journal
PHYSICAL REVIEW D
DOI
https://doi.org/10.1103/physrevd.54.857
Collections
Department of Physics, Article
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Radiative B-* meson decays in QCD sum rules
Alıyev, Tahmasıb; Pak, NK (Springer Science and Business Media LLC, 1997-01-01)
The decay constant g(B)* of the B* mesons and the transition amplitudes of the radiative decays B-a* --> B-a gamma are calculated in the frame-work of QCD sum rules. It is shown that the decay rates B* --> B gamma are one order smaller than the corresponding D* meson decays.
Radiative decays of the heavy tensor mesons in light cone QCD sum rules
Alıyev, Tahmasıb; Savcı, Mustafa (American Physical Society (APS), 2019-01-11)
The transition form factors of the radiative decays of the heavy tensor mesons to heavy pseudoscalar and heavy vector mesons are calculated in the framework of the light-cone QCD sum rules method at the point Q(2) = 0. Using the obtained values of the transition form factors at the point Q(2) = 0, the corresponding decay widths are estimated. The results show that the radiative decays of the heavy-light tensor mesons could potentially be measured in the future planned experiments at LHCb.
Semileptonic B -> a(1)l nu decay in QCD
Alıyev, Tahmasıb; Savcı, Mustafa (1999-06-10)
The form factors and the branching ratio of the B --> a(1)lv decay are calculated in framework of QCD sum rules. A comparison of our results on form factors and branching ratio with the results from constituent quark model is presented. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
Radiative decays of the p-wave charmed heavy baryons
Alıyev, Tahmasıb; Savcı, Mustafa (Springer Science and Business Media LLC, 2019-05-23)
The radiative decays of the p-wave charmed heavy baryons to the ground state baryon states are studied in the framework of the light cone QCD sum rules method. Firstly, the transition form factors that describe these transitions are estimated and then, using these form factors, the corresponding decay widths are calculated. A comparison of our results for the decay widths with those predicted by the other approaches existing in the literature is performed.
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T. Alıyev, E. Iltan, and N. Pak, “Radiative B-*->B gamma and D-*->D gamma decays in light-cone QCD sum rules,”
PHYSICAL REVIEW D
, pp. 857–862, 1996, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37958.