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Radiative Delta -> N gamma decay in light cone QCD
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Date
1999-12-01
Author
Alıyev, Tahmasıb
Savcı, Mustafa
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The g(Delta N gamma) coupling for the Delta-->N gamma decay is calculated in the framework of the light cone QCD sum rules and is found to be g(Delta N gamma)=(1.6+/-0.2) GeV-1. Using this value of g(Delta N gamma) we estimate the branching ratio of the Delta(+)-->N gamma decay, which is in a very good agreement with the experimental result. [S0556-2821(99)02023-8].
Subject Keywords
Mesons
,
Magnetic-moments
,
Exclusive processes
,
Asymptotic-behavior
,
Resonance physics
,
Quantum chromodynamics
,
Sum-rules
,
Pion form-factor
URI
https://hdl.handle.net/11511/46590
Journal
PHYSICAL REVIEW D
DOI
https://doi.org/10.1103/physrevd.60.114031
Collections
Department of Physics, Article
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Radiative B-* meson decays in QCD sum rules
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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
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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.
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T. Alıyev and M. Savcı, “Radiative Delta -> N gamma decay in light cone QCD,”
PHYSICAL REVIEW D
, pp. 0–0, 1999, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46590.