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transition amplitudes from QCD sum rules

✍ Scribed by Wang, Lai; Lee, Frank X.


Book ID
121471417
Publisher
The American Physical Society
Year
2009
Tongue
English
Weight
727 KB
Volume
80
Category
Article
ISSN
1550-7998

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We calculate the form factors and the coupling constant in the D \* Dρ vertex in the framework of QCD sum rules. We evaluate the three-point correlation functions of the vertex considering D, ρ and D \* mesons off-shell. The form factors obtained are very different but give the same coupling constan