| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10720517 | Nuclear Physics A | 2011 | 14 Pages |
Abstract
We calculate the form factors and the coupling constant in the DâDÏ vertex in the framework of QCD sum rules. We evaluate the three-point correlation functions of the vertex considering D, Ï and Dâ mesons off-shell. The form factors obtained are very different but give the same coupling constant: gDâDÏ=4.3±0.9 GeVâ1.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
B. Osório Rodrigues, M.E. Bracco, M. Nielsen, F.S. Navarra,